Nigerian sprinter Blessing Okagbare has been provisionally suspended just hours before she was due to run in the semi-finals of the women’s 100m at the Olympics on Saturday.

The Athletics Integrity Unit announced that Okagbare had “tested positive for human growth hormone” in an out-of-competition test on July 19.

Okagbare, who won Olympic silver in the long jump in Beijing 13 years ago, holds the Commonwealth Games record in the women’s 100m, set in Glasgow in 2014.