Ethiopian runner Genzebe Dibaba has broken the world record in the women's 1500m at the Diamond League meeting in Monaco.

The 24-year-old recorded a time of 3:50.07 to beat the existing record of 3:50.46 held by China's Qu Yunxia.

Dibaba, who is the sister of three-time Olympic champion Tirunesh Dibaba and Olympic silver medallist Ejegayehu Dibaba, represented Ethiopia in the 2012 Olympics in London.

In July she broke the African record in the 1500m with a time of 3:54.11 in Barcelona.