ATTACK OF THE KILLER SQUIRRELS

Passers-by were reportedly too late to stop the attack by the black squirrels in a village in the far east, which reportedly lasted about a minute.

They are said to have scampered off at the sight of humans, some carrying pieces of flesh.

A pine cone shortage may have led the squirrels to seek other food sources, although scientists are sceptical.

"They literally gutted the dog," local journalist Anastasia Trubitsina told Komsomolskaya Pravda newspaper.

"When they saw the men, they scattered in different directions, taking pieces of their kill away with them."

Mikhail Tiyunov, a scientist in the region, said it was the first he had ever heard of such an attack.

While squirrels without sources of protein might attack birds' nests, he said, the idea of them chewing at a dog to death was "absurd".

"If it really happened, things must be pretty bad in our forests," he added.

Komosmolskaya Pravda notes that in a previous incident this autumn chipmunks terrorised cats in a part of the territory.

A Lazo man who called himself only Mikhalich said there had been "no pine cones at all" in the local forests this year.

"The little beasts are agitated because they have nothing to eat," he said.