Metro North Police are investigating an accident involving two Metro North trains near Route 102 and Route 7 in Ridgefield.
The two passenger trains with a few dozen riders on board sideswiped one another just after 10pm Friday night, police said.
A wheel on one on the trains fell off as a result of the accident.
No injuries were reported on either train but train service was suspended on the MTA Danbury Line for the remainder of the night.