The rescue teams faced lot of difficulty in reaching the avalanche site Friday morning due to strong winds and accumulation of snow, officials said.
The avalanche had hit the north portal of Jawahar Tunnel on the Qazigund side in Kulgam district on Thursday evening.
While 10 policemen posted at the police post near the tunnel managed to reach safety before the avalanche struck, 10 other policemen were believed to be trapped.
Kashmir valley has been witnessing heavy snowfall since Wednesday with Kulgam District in south Kashmir receiving maximum precipitation in the past 24 hours.
Some places in the district have received as much as five feet of snow, officials said.
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