American Sydney McLaughlin produced one of the greatest track performances of all time on Friday by shattering her own 400 metres hurdles world record to win World Championships gold.

Usain Bolt beats Justin Gatlin for the world 200m title at the championships in Beijing, China.

Usain Bolt’s focus turns immediately to the 200m, in which he will be seeking a fourth consecutive title after having previously triumphed in Berlin, Daegu and Moscow.

Jamaica's Shelly-Ann Fraser-Pryce narrowly beats Dafne Schippers of the Netherlands to retain her 100m world title in Beijing.

Two men have been arrested at the Pokemon World Championships venue in Boston, US, following a tip-off by the event's security staff.

Jamaican sprint star Usain Bolt expresses his sadness that doping issues are the talking points before world championships at Beijing.