A passenger train derailed in western Russia late Saturday after a bridge collapsed because of what local officials described as "illegal interference." Officials said at least seven people were killed and 30 injured.

The bridge in Russia's Bryansk region, which borders Ukraine, was damaged "as a result of illegal interference in transport operations," Moscow Railways said in a statement without elaborating.

Russia's federal road transportation agency, Rosavtodor, said the destroyed bridge passed above the railway tracks where the train was travelling.