At least 10 people, including six children and four adults, were killed after an all-terrain vehicle capsized while crossing a remote Siberian river, according to officials on Friday.

Apparently, members of two families, they are thought to have drowned in the Siberian region of Tyva bordering Mongolia, the head of the region said.

“Ten people died as they attempted to cross the Shui river in their UAZ-469,” Sholban Kara-ool said in a post on Facebook, while referring to an offroad light utility vehicle that seats up to seven people.

In a separate statement, investigators have also said that locals found ten bodies in a vehicle that appeared to have capsized in the water.

Russia’s Investigative Committee said, “We have opened a criminal probe into a possible violation of traffic safety rules”.

Road accidents are common in Russia, where many people ignore traffic rules.