Christopher Tufton, Jamaica’s minister of health and wellness, announced Monday night that eight-time Olympic gold medalist Usain Bolt tested positive for the novel coronavirus after attending his 34th birthday party Friday.

Before his positive test was announced, Bolt on Monday released a video on social media in which he said he had been tested Saturday and was awaiting results. He said he was not showing symptoms and was quarantining as a precaution until he received his test results.

“Be safe out there,” Bolt said in the video.

Bolt was captured on video dancing with others without wearing a mask or social distancing during a party in Jamaica.

A number of pro athletes, including Manchester City star Raheem Sterling and Bayer Leverkusen’s Leon Bailey, were at the party. A Manchester City spokesman told the Guardian on Monday that Sterling still was in Jamaica and that he would be tested for the novel coronavirus before the next English Premier League season begins, as all players are.

At Monday’s news conference, Jamaica Prime Minister Andrew Holness said police are investigating Bolt’s party. Amid rising instances of the coronavirus, the island nation announced Monday an expansion of its curfew, a ban on funerals and a prohibition on gatherings of more than 20 outside places of worship.

On Saturday, Bolt posted a photo on Instagram showing him holding his newborn daughter, Olympia Lightning Bolt.

“Best birthday ever,” he wrote.

View this post on Instagram

Best Birthday Ever ⚡️🙏🏿

A post shared by Usain St.Leo Bolt (@usainbolt) on

Bolt became the fastest man alive with a world-record 100-meter dash time of 9.58 seconds in 2009, a mark that has yet to be broken. He also holds the world record in the 200 meters. Bolt retired from sprinting after the 2017 world championships.

Read more: