Stockholm - Ethiopia's Genzebe Dibaba set a new world indoor mile record at the IAAF meeting in Stockholm on Wednesday.
The 1 500m outdoor world champion and record-holder added another leading mark to her growing collection by clocking 4min 13.31sec, taking nearly 4sec off the previous best set by Romanian Doina Melinte 26 years ago.
Dibaba, 25, is also the world record holder for 3,000m outdoors, 1 500m, 3 000m and 5 000m indoors, while she has the 2-mile indoor world best time as well.
She is also a two-time indoor world champion.
Her performance was the second fastest mile run by a woman indoors or outdoors.
Her training partners, Djibouti's Ayanleh Souleiman and Abdalelah Haroun of Qatar, also broke world records.
Souleiman, 23, clocked a new mark of 2min 14.20sec in the 1 000m to beat the previous best set by Denmark's Wilson Kipketer of 2:14.96 in 2000.
Haroun ran the 500m in 59.83sec to post a new world best in that little-run event.