A village in Russia's Far East has become home to more than 50 polar bears, with abnormally warm weather being blamed.

The bears descended on the village of Ryrkaypiy, in the Chukotka region, and have become trapped there for three to four days on an area of land known as "bear landing".

Villagers say they are waiting for stronger ice to form so that the bears leave the area.

The World Wildlife Fund recorded drone footage of the bears eating walrus carcasses close to the coastal village.

Such "crowding" of predators such as polar bears is rare, according to the WWF.

All social events in the village, home to fewer than 1,000 people, have been cancelled and patrols have been organised to prevent the predators from entering the village.

"Almost all the bears are thin. Among them are both adult and young animals, there are females with cubs of different ages," said Tatyana Minenko, the head of bear patrol.

"We have created a feeding point with walrus carcasses that we gathered along the coast," she told news agency RIA Novosti.

Mikhail Stishov, coordinator of WWF-Russian projects for the conservation of Arctic biodiversity, said that "if the ice was strong enough, the bears, or at least some of them, would have already gone to sea, where they could hunt for seals … in the meantime, they will look for food along the coast.

"Similar situations are becoming the norm. We need to adapt to this so that neither people nor bears suffer."

Scientists say that global climate change is affecting temperature levels across the world.

Russia's weather service said temperatures in the region should fall from Saturday and that coastal ice should freeze by December. 

Polar bears regularly visit areas inhabited by humans in Arctic Russia to search for food, often in rubbish tips.

But the number of visits has been growing as the melting of Arctic ice from climate change forces the bears to spend more time on land where they compete for food.