(CNN) -- At least three people were killed when two commuter trains collided near Buenos Aires on Thursday, CNN affiliate Canal 9 reported.
At least 150 people were hurt in the accident, which occurred in a western suburb of the capital near the Castelar stop on the Sarmiento line.
TV video showed rescuers rushing to the scene to evacuate people.
Paul Gunning, a spokesman for the operational management unit for the Mitre and Sarmiento train lines, told CNN there were "several fatalities" in the crash.
Argentina's state-run Telam news agency reported that two women and a man were killed, but it did not give their names.
Thursday's crash happened nearly 16 months after a commuter train crashed into a barrier at a station in Buenos Aires, killing 50 people and injuring hundreds.
CNN's Ivan Sarmenti and Miguel Escalona contributed to this report.