Explosives trigger controlled avalanches in Swiss Alps January 17, 2019 at 05:30AMhttps://https://bbc.in/2W1X5Jh Helicopters dropped explosives to prevent larger snowslides after heavy snowfall in the region.

Helicopters dropped explosives to prevent larger snowslides after heavy snowfall in the region.

from BBC News - World https://bbc.in/2RQWJWN