A 45-year-old man drowned in a boating accident on the Elk River Saturday, authorities said.

Maryland Natural Resources Police said officers were dispatched to the private Chesapeake Isles Community along the Elk River to investigate a capsized vessel and persons in distress.

They said vessel had taken on water before capsizing in a mooring area near the community.

The operator and three passengers were pulled from the water by witnesses.

The operator was unconscious. The witnesses administered CPR to the man before emergency medical workers arrived.

He was transported to Union Hospital in Elkton, where he was pronounced dead.

Police said the three passengers were uninjured during the mishap.

They said they were withholding the name of the victim pending notification of kin.

Police said it was the 11th death in Maryland waters this year.

The Maryland Natural Resources Police encourage all boaters to wear a personal flotation device while on the water and to be observant of the carrying capacity of their particular vessel.