Shimla, Oct 19 (IANS): An Indian Air Force (IAF) MiG 29 crashed in Himachal Pradesh's Lahaul Valley, police said Wednesday, adding that rescue workers had begun to search for survivors in the treacherous mountain terrain.

There is no official confirmation about the number of people on board the aircraft that crashed Tuesday night.

"A communication was received from the IAF at around 8.30 p.m. Tuesday that a MiG 29 has crashed," Superintendent of Police Bimal Gupta told IANS over phone.

"A team of rescue workers has reached Chokhan village from where they have started trudging up the mountains to reach the accident spot," he said.

"We are awaiting the arrival of the IAF teams. The accident spot is quite treacherous and inaccessible. IAF choppers are likely to be deployed to reach the spot," the officer added.

Chokhan village on the Keylong-Udaipur highway is about 40 km from the district headquarters of Keylong and 450 km from here.

"We have no information about the number of people on board the aircraft," Deputy Commissioner Rajeev Shankar said.