(Reuters) -Britain's Olympic 4x100m relay silver medallist Chijindu Ujah has been provisionally suspended for allegedly breaching anti-doping rules at the Tokyo Games, the Athletics Integrity Unit (AIU) said on Thursday.

Three other track and field athletes who were suspended during the Games -- Moroccan-born Bahraini 1,500m runner Sadik Mikhou, Georgian shot putter Benik Abramyan and Kenyan sprinter Mark Otieno Odhiambo -- were also listed.