NEW HAVEN, Conn. (WTNH)– The Connecticut Department of Energy and Environmental Protection has identified the Milford man who was killed in a boating accident in New Haven Harbor on Saturday night.

At around 10:30 p.m., State EnCon Police, the New Haven Fire Department and the U.S. Coast Guard all responded to a boating accident in Long Island Sound. DEEP says 43-year-old Joseph Regan, of Milford, was operating his 24′ Seaswirl vessel, with his passenger, 47-year-old Robert Ross, of Guilford, when he struck an object. Both Regan and Ross were then ejected from the vessel.

Related: One dead in New Haven Harbor boating accident on Saturday night

DEEP says Ross swam back to the vessel and radioed for help. Both men were taken to Yale-New Haven Hospital, where Regan was pronounced dead.

The accident remains under investigation by Encon Police.