A Russian climber who had been stranded 24,000ft up a mountain for two weeks is now presumed dead after thermal imaging was taken of the area.

Natalia Nagovitsyna was climbing the Victory Peak in Kyrgyzstan, but broke her leg and became stuck.

State security agency said on Wednesday that thermal-imaging drone survey of the area where Nagovitsyna was, showed no signs she was still alive.

'Based on analysis of the data obtained and taking into account a combination of factors, including extreme weather conditions and the specifics of the area, no signs of life were found at Nagovitsyna's location,' it said in a statement.

Several rescue attempts failed to retrieve the 47-year-old climber, who spent more than two weeks in a small orange tent, torn apart by gusting winds, at the mountain top where summer temperatures reach lower than -20C.