Two Metro-North passenger trains heading in opposite directions collided during rush hour Friday evening, damaging both trains and leaving some "bloody" and wounded as a result, a witness and transit official said.

A train heading from New Haven to New York City derailed around 6:10 p.m., hitting the other train in Bridgeport, Connecticut, Metro-North spokeswoman Marjorie Anders said. That caused some cars on the second train, which was destined for New Haven, to likewise leave the tracks.

Two Bridgeport hospitals were treating dozens of patients, three of whom were in serious condition, officials said.