An elite female athlete from Sierra Leone has gone missing following the London marathon.
Police said Mami Konneh Lahun, 24, vanished after finishing the event in 20th place.
She is due to fly home later today but did not return to her temporary accommodation following the race.
The runner had been staying at an address near Greenwich since arriving in the country on April 7.
She has no known links to the UK and does not have a mobile phone.
Temperatures of 11C (51.8F) were recorded at the start of the race in Greenwich at 10am but, as runners made their way around the 26.2-mile course through the capital, the bright sunshine and lack of a breeze made conditions feel considerably warmer.
By the time runners reached the finish line in St James's Park, temperatures reached 16C (60.8F), the equal highest of anywhere in the UK.
Kenyan world record holder Wilson Kipsang won the men's race in 2hrs 4mins and 29secs, a course record, while home favourite Mo Farah came home almost four minutes back in 2hrs 8mins and 21secs.
The women's title was taken by Edna Kiplagat of Ethiopia, in a time of 2hrs 20mins and 21 secs.