Cedar Point's new roller coaster 'Steel Vengeance' is running again following a collision that temporarily shut down the ride during opening weekend.

Park officials say a returning train "lightly bumped" another train in front of it around 1:30 p.m. Saturday.

There were riders in both trains.

Four people did request first aid but all later went back to the park. 

The coaster was open again Saturday night according to park officials.