Bolt Wins Third 100m Gold

Usain Bolt has won gold in the 100m at the Rio Olympics, becoming the first sprinter to win three successive Olympic 100-meter titles.

The Nigerian Islamist group Boko Haram has released a video showing some 50 of the schoolgirls they abducted from the northern town of Chibok. We hear from one father who recognised his daughter in the video.

At least three people have died and thousands have been rescued after "historic" flooding swamped the US state of Louisiana. The neighbouring states of Alabama and Mississippi are also experiencing severe weather.