Police and fire personnel were called to Trimper's Rides on South Atlantic Avenue around 9:30 p.m. Thursday. The Tidal Wave roller coaster had an apparent mechananical problem that police say injured several passengers.
Paramedics took three children between the ages of 10 and 15 years old to area hospitals with injuries that do not appear to be life theatening.
The park stayed open, but the roller coaster is closed until it can be checked by an amusement park ride safety inspector with Maryland Department of Labor and Licensing.
The park's website calls the double-loop boomerang roller coaster the most popular ride in the outdoor park.