Florida ? Five people were killed and seven seriously injured when a 22-foot pleasure boat crashed into the rear of a docked tug boat near St. Augustine Sunday evening, authorities said.

The crash happened about 7 p.m. on the Intracoastal Waterway in St. Johns County near the Palm Valley Bridge, about 20 miles northwest of St. Augustine, said Florida Fish and Wildlife Conservation Commission spokeswoman Joy Hill.

Three of the injured were airlifted from the crash site and all seven were taken to area hospitals, she said.

The Intracoastal Waterway runs along Florida’s east coastline. Hill was not sure whether those on the Crownline boat were tossed into the water during the crash.

She said it doesn’t appear anyone was aboard the 25-foot tug boat, which is registered to F&A Enterprises in St. Augustine.