Two bridges have collapsed in Russia’s western regions bordering Ukraine, killing multiple people and injuring dozens, authorities said.

Explosions caused two bridges to collapse and derailed two trains in western Russia, officials said, without saying what had caused the blasts. In one of the incidents, seven people were killed and dozens were injured.

(Reuters) -At least seven people were killed and 69 injured when a highway bridge collapsed onto railway tracks after an "illegal interference," derailing a train in Russia's Bryansk region that borders Ukraine,