Breaking news

The silver medal won by Great Britain in the 4x100m relay at the Tokyo Olympics has been stripped due to a positive drug test by one of the team members.

The British team finished second to Italy.

After the event on 6 August, Ujah tested positive for ostarine and S-23.

He will regret the situation for the rest of his life, because he didn't know he had consumed a contaminated substance.

I would like to apologize to my team-mates, their families and support teams for the impact this has had on them. I am sorry that this situation has cost my team-mates the medals they worked so hard for, and which they richly deserved.

I would like to apologize to British Athletics and Team GB. The relay athletes have been supported by British athletics for a long time.

I will forever be devastated that this situation has ruined the success achieved by the men's 4x100 relay team in Tokyo, because I was so proud to represent my country at a second Olympic Games.

Ujah did not challenge the decision made by the anti-doping division.

World athletics should consider its own actions, including the possibility of handing Ujah a ban from competition.

More to come.