About 150 people were injured and seven were killed after a bus and two trains were involved in a collision, police said, according to the state-run Telam news agency reported. A train rammed into a bus at a street-level train crossing, causing the train to derail, where it was struck by a second train. The crash happened at 6:15 a.m. (5:15 a.m. ET) in the Flores district of Buenos Aires.