By harry strong and hugo godfroy

  Four people died in an avalanche smashing through an Austrian ski resort popular with British tourists.  Snow tumbled on to a car on a road approaching the Tyrolean town of Obergurgl, which is packed with British holidaymakers on school half-term.  It is thought two adults and two children - all passengers in the vehicle and understood to be German tourists - died after being buried underneath the crushing snowfall..  In a second avalanche, also on the edge of the high-altitude resort, rescuers pulled a couple from their car unscathed after it was covered in snow, reports said.  Marion Telsnig, from Thomson Ski and Snowboarding, said: "There are a lot of British tourists in Obergurgl at the moment because of the school holidays.  "Over the last two days the snowfall has been particularly heavy in the area and it hasn't stopped yet.  "They have had nearly a metre of snow in the last day and a half and they are on avalanche warning four (out of five), which is quite high. Four die in Austrian avalanches

  There was an avalanche in the French alps when British tourists were skiing and the mountain top fell on top of them and they all died. Other avalanches

  An avalanche is a mountain top of snow that gets overloaded and it gets too heavy for the mountain and it falls and it clears everything in its path. What is an avalanche