Multiple people were injured on Sunday night when a boat struck a ferry with dozens of passengers aboard near the Memorial Causeway Bridge in Clearwater, Fla., the authorities said.

The boat that hit the Clearwater Ferry, which was carrying more than 40 people, fled after the crash, the Clearwater Police Department said in a statement. At least two people were taken to local hospitals by helicopter, the police said. It was unclear what had led to the crash, and the police did not say how many people had been injured.

The Coast Guard and the Florida Fish and Wildlife Conservation Commission were investigating the incident. The Coast Guard did not immediately respond to requests for comment.

This is a developing story.