(VIENNA) -- Dozens of people were injured after two commuter trains collided in Austria Monday morning.
The trains hit each other head-on during rush hour in a suburb of Vienna. Rescue workers had to cut passengers out of the wreckage, the BBC reports.
At least 20 people were injured, five seriously, according to the BBC.
It's not yet clear what caused the crash or why the trains were traveling on the same track.
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