Valerie Adams wins Olympic gold

Valerie Adams has won gold in the Olympic women's shot put, after Belarus competitor Nadzeya Ostapchuk was stripped of her medal for failing a drug test.

A statement on the IOC website says the athlete was first requested to provide a urine sample for a doping control on 5 August.

"She competed the next day in the women's shot put event, where she placed first, and was asked to provide a sample straight after her competition. Both samples indicated the presence of metenolone, which is classified as anabolic agent under the 2012 Prohibited List."

The statement said Ostapchuk would be disqualified from the event and have her medal withdrawn, which would be awarded to Adams.

Evgeniia Kolodko, Russian Federation, will be the silver medallist, while Lijiao Gong of China receives bronze.