The Coast Guard says the bodies of two fishermen were recovered after their boat sank off the coast of southern Maine Thursday.

On Friday afternoon, the Department of Marine Resources released the identities of the two men: 60-year-old Arnold Nickerson IV of Arundel and 44-year-old Chris Pinkham of Boothbay Harbor.

The two men died when their 42-foot groundfishing boat, the Hayley Ann, sank in the frigid water.

They say the Hayley Ann, based in Kennebunkport, sent a distress signal just before 12:30 p.m.

At the time, the vessel was about 45 nautical miles southeast of Portland.

The Porland Press Herald reports the Coast Guard sent a fixed-wing aircraft and two helicopters from Air Station Cape Cod to search for the boat.

The Coast Guard cutter Steelhead also responded.

They’re still trying to determine why the boat sank.