A helicopter ferrying pilgrims from Kedarnath temple to Guptkashi crashed into a hill due to poor visibility on Tuesday, killing all six pilgrims and the pilot on the spot.

The chopper -- Bell 407 (VT-RPN) and operated by Aryan Aviation -- burst into flames at around 11.45 am at Dev Darshini in Garud Chatti, Rudraprayag District Disaster Management Officer Nandan Singh said.