At least 60 people were injured when two commuter trains serving New York City collided in Connecticut during the Friday rush hour.
Shortly after 6 p.m., an eastbound Metro-North train derailed and hit a westbound train near Fairfield, throwing passengers around and shutting down service between Boston and New York City.
At least 60 people were injured, though none of the injuries were life-threatening, Gov. Danel Malloy said in a news conference Friday night.
There was about 250 people on the trains at the time.
Those who weren't seriously injured were left to scramble for cabs to get home.
"At this stage, we don't know if this is a mechanical failure, an accident or something deliberate," Fairfield police spokesman Lt. James Perez told the Connecticut Post.
Eyewitness Brian Alvarez described the scene as "pretty graphic" in an interview with CNN.
"I saw this one car and it was completely destroyed and they were pulling people out of the car," he said. "... They were all bloody."
The mayor of Bridgeport, Conn., said travel headaches could continue for weeks after both of the tracks involved were completely destroyed.