The Columbia police on Sunday reported that three people are dead and others feared buried in snow after an avalanche struck a snowmobile competition near Revelstoke, British Columbia.

In addition, it is reported that up to 200 people were estimated to have been present at the snowmobile competition on the slopes of Boulder Mountain when the avalanche occurred Saturday afternoon, according to the Royal Canadian Mounted Police.

However, it was not detailed that whether other people were still trapped in the snow.

But avalanche search teams have been brought to the Revelstoke, situated at about 186 miles west of Calgary, Alberta to lend a helping hand in the rescue operation at the avalanche site.

Police has revealed that least a dozen people were injured, with some seriously wounded.

Local media report quoted witnesses as revealing that the avalanche drifted some of the snowmobilers as much as 200 metres (650 feet) down the mountain along with it, however, it was unclear if the snow struck just the competitors or the audience as well.

The Canadian Avalanche Center, Revelstoke, had extended a official warning to the local residents that the risk of avalanches in the backcountry mountain areas was high on account of recent heavy snowfall.