The Australian provided a sample during an ATP 250 event in Mallorca, Spain, on 22 June.
The International Tennis Integrity Agency announced the suspension of the 31-year-old following a positive test for benzoylecgonine, a cocaine metabolite.
Kyrgios, who reached a career-high rank of 13, has been provisionally suspended since 4 August after a World Anti-Doping Agency (WADA) laboratory confirmed the presence of the banned stimulant on 17 July.
In a statement posted on social media, Kyrgios said: "I recently failed a drug test in Mallorca after testing positive for cocaine.
"I made a huge mistake and I take full responsibility for it.
"I'm sorry to my fans, my family, my sponsors and everyone close to me.
"Above all, I'm sorry to the kids who follow me. I know the example this sets and I'm deeply disappointed in myself."
In the same post, he said injuries had "taken a huge toll on me" but "none of that excuses what I did".
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Cocaine is classified as a stimulant and substance of abuse on the WADA Prohibited List and is banned in competition under tennis anti-doping rules.
While suspended, Kyrgios cannot play in, coach at, or attend any events organised by World Tennis, WTA, ATP, the Grand Slams, or any national association.
The player has not appealed the suspension and said he would step away from social media and public life for 28 days to "focus on getting myself right".
"I'm sorry. I'll do the work and come back better," he added.
It comes after the Federal Communications Commission (FCC) forced the company to apply for early licence reviews for its ABC TV stations amid pressure from the president for it to sack talk show host Jimmy Kimmel.
Donald Trump had accused Kimmel of making a "descpicable call to violence" after he made a joke about his wife, Melania, having a "glow like an expectant widow". It came days before a gunman opened fire at the White House Correspondents Association dinner, which was attended by the Trumps.
Kimmel was briefly taken off-air last year over comments about the killing of Trump supporter Charlie Kirk, but no action was taken over the gag about the first lady.
In a lawsuit filed in a Washington court on Tuesday, Disney said the FCC was seeking to coerce and punish a network "that refuses to bow to the administration's demands".
The lawsuit accuses the Trump administration of threatening the company's free speech rights, protected under the constitution, because of "programming and editorial decisions the administration dislikes".
Mr Trump has repeatedly urged broadcasters to drop programmes and personalities he dislikes. He has repeatedly targeted Disney-owned ABC, including for refusing to show a prime-time speech on claims of election fraud.
'Disney seems a little nervous'
The FCC has insisted its reviews of ABC's licences, which were due to start in October 2028, had been brought forward because of a year-long discrimination investigation into Disney's diversity policies.
FCC chair Brendan Carr, who was appointed by Mr Trump, has denied it was because of the Kimmel backlash.
He told Reuters the agency was yet to make a decision about whether to begin the process of revoking the licences.
"Disney seems to be a little nervous about what the record's showing," he said.
The court case will pose a key test of the free speech rights of media outlets.
Mr Khan has been in jail in Rawalpindi since August 2023 after a string of convictions that his supporters and human rights groups say are politically motivated.
The former prime minister's health has reportedly been declining during his sentence, and he is said to have lost 85% of his vision in his right eye.
His spokesperson Zulfi Bukhari told Sky News' The World with Yalda Hakim earlier this year that Mr Khan's doctor has not been allowed to treat him, and that he has not received adequate care.
On Tuesday, Pakistan's supreme court ordered the government to move Mr Khan, 73, to the private Shifa International Hospital in Islamabad within two days, and that he be given access to his personal physician.
The court order also directed the authorities to ensure a telephone call is held twice a week between the former prime minister and his two sons, who live in London.
But the country's law minister has said that the government will challenge the decision, saying authorities had deliberated on the ruling and decided that the court should be approached for a review.
"This order is not within four walls of the law," Azam Nazeer Tarar said in a statement, adding that a convicted prisoner has to be treated either inside the jail or at a public hospital according to law.
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Mr Khan's Pakistan Tehreek-e-Insaf (PTI) party welcomed the order, saying it should be implemented "immediately, fully, and without delay".
Mr Bukhari also told Sky News presenter Mark Austin on Tuesday afternoon that the court's order was a "welcome step" that should have been taken much earlier.
"That doesn't mean that we're going to call off our 27 September protest at the moment," he added, referring to the latest demonstration calling for Mr Khan's release.
He also said that he hopes that "the Supreme Court sticks by its guns and rejects the review and puts the government under contempt".
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Mr Khan has been in jail since his August 2023 arrest after he was handed a three-year prison term for illegally selling state gifts.
In January 2025, he was handed a 14-year sentence in a corruption case, and in December, he was sentenced to 17 years in prison for buying state gifts at a knock-down price.
All convictions but one have been suspended or overturned, with appeals pending. He denies wrongdoing and says the cases are politically driven.
He served as prime minister until 2022, when he was removed from office by a vote of no confidence.
ULEZ charges drivers £12.50 per day for entering any of the capital's boroughs in older, more polluting vehicles.
Health measurements taken in 2018, before it was introduced, showed children in London had significantly smaller lung size compared with children in Luton.
But as the scheme was phased in, the study found the youngsters' lung health improved so that the two groups became comparable over a five-year period.
A team led by scientists at Queen Mary University came up with their findings after giving more than 3,400 children, aged six to nine, yearly tests between 2018 and 2022.
They found that improved lung growth trajectories were strongly related to air quality improvements.
Joint senior author of the report Chris Griffiths, a professor at Oxford and Queen Mary, said: "Traffic pollution in cities damages children's health and development.
"We provide the strongest evidence yet on how these harms can be prevented.
"Ambitious clean air zones should be considered a priority for cities globally with traffic-related air pollution."
Khan: We were right
ULEZ was introduced in 2019 and expanded to cover the areas inside the North and South Circular roads in 2021 and the whole of London in 2023.
Critics of the scheme argued it unfairly penalised people who can't afford newer vehicles. Some of the cameras that police the ULEZ zone were vandalised.
London mayor Sir Sadiq Khan said the research "proves we were right to act and reinforces my decision to extend the benefits of cleaner air to every child in London".
"Introducing and expanding ULEZ involved incredibly difficult decisions," he added.
"It was very tough, and a vocal minority backed by vested interests made it extremely difficult, but I refused to stand by while air pollution continued to damage Londoners' health."
People whose lungs are not fully developed by early adulthood are said to have an increased risk of asthma, cardiovascular and metabolic disease and premature death as adults.
Eighty-four primary schools took part in the research. To evaluate the children's lungs, researchers measured how much air they could forcibly exhale in one second (known as FEV1).
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They found the London kids' exposure to nitrogen dioxide fell twice as fast and more than twice as much compared with the Luton children in the years after ULEZ came in.
As their exposure decreased, the London children's FEV1 score increased by 10ml per year more than those in Luton.
There was also a bigger fall in the proportion of children with clinically impaired lung function: going from 14% to 9% in London but only 9% to 7% in Luton.
The research appears in The Lancet Public Health journal.
Named after the powerful biblical figures of Samson and Goliath, the yellow cranes have dominated the Belfast skyline for decades and are described as symbols of the city.
The structures are set to be "at their busiest for many years" after the refurbishment by their owners, Navantia UK.
The uplift will see the cranes' engines overhauled and their catenary cables, through which they get their power, set for replacement.
Engineers will make structural and electrical repairs to them both.
Work has already begun on the older crane, Goliath, which was built in 1969 and is 315ft (96m) high.
Once completed on Goliath, the refurbishment will then move on to Samson, which is the crane closer to the sea and which was installed in 1974 with a height of 348ft (106m).
Each crane is capable of lifting 840 tonnes - equivalent to four Boeing 747 jumbo jets.
Work on Samson and Goliath is part of a £98.5m recapitalisation of Harland & Wolff Belfast, which will prepare the yard for naval and commercial shipbuilding projects.
Harland & Wolff has begun a programme to build three fleet solid support ships for the Royal Fleet Auxiliary - which will provide supplies to naval ships at sea, and will be the second largest vessels in the armed forces behind the Queen Elizabeth class aircraft carriers.
Carlos Lopez Carregado, general manager at Harland & Wolff, described Samson and Goliath as "symbols of Belfast".
"We know that the city is proud of them, and this major mechanical, electrical, hydraulic and fabric maintenance project will restore them to their absolute best," he said.
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Mr Carregado added: "We will be replacing parts, updating technology and testing them to see that they can lift at full capacity, and we will be treating them with utmost respect.
"The cranes are sophisticated pieces of machinery capable of carrying enormous weight.
"They will need all of their strength to lift blocks for the fleet solid support vessels, and for future ships which we anticipate building in Belfast.
"You can expect to see Samson and Goliath swing into action soon - they are about to be at their busiest for many years."