Lamont Marcell Jacobs won the most coveted crown in athletics on Sunday, giving Italy its first 100 meters gold on a night of high drama in Tokyo.

As Jacobs stormed to the first Olympic title of the post-Usain Bolt era, the fate of a Belarusian sprinter's Tokyo Games was playing out at a nearby airport.

Krystsina Tsimanouskaya, who had been due to compete in the women's 200 meters on Monday, said she had sought the protection of Japanese police at Tokyo's Haneda Airport after being taken to the airport against her wishes.