Rubber bullets can also be used.
An Arctic region of Russian Federation has declared a state of emergency over a polar bear "invasion" which has left people "afraid to go outside". "Parents are afraid to let the children go to school or kindergarten" the regional government said in a statement, according to TASS. At least 52 polar bears were spotted near the settlement of Belushya Guba.
Since polar bears are endangered, it is illegal for residents to shoot them.
Some of the animals have attacked people and entered residential buildings, the agency said.
According to Alexander Minayev, the deputy head of Novaya Zemlya administration, dozens of polar bears gathered near human settlements from December 2018 until February 2019. Photos and videos posted over the weekend show the bears traipsing through empty schoolyards and even infiltrating the corridors of office buildings in search of food.
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The local administration declared a state of emergency on Saturday, warning that the bears were behaving aggressively and that people were afraid to leave their homes.
The settlement put up additional fencing around schools and arranged for children to be driven to and from class.
Experts are reportedly being brought in to try to deal with the problem - though we all know the problem is much bigger than just these bears.
While polar bears are not uncommon in the region, climate change has been blamed for the unprecedented frequency and large number of the visitors, the BBC reports. "I've been on Novaya Zemlya since 1983", he explained. He said sea ice can shift dramatically in the area depending on a variety of factors. The migration "is not a new phenomenon", he said. As green house gas emissions warm the globe and prompt the melting of sea ice, polar bears are forced to continue their pursuit of sustenance on land. Along their migration route, the animals encountered the open dump at Belushya Guba, where the military apparently had disregarded strict rules on garbage disposal imposed on oil and mining companies and others working in the Russian far north.