Authorities say they are investigating a fatal boating accident in East Texas that killed three Boy Scouts.

Members of Troop 620 in Hallsville were out on the water of Lake O the Pines on Saturday when their catamaran sailboat collided with an overhead transmission power line, possibly electrocuting those on board, the Texas Parks and Wildlife Department said in a release .

Game wardens, responding just before 2 p.m., reported finding the boats sails in flames, the department said.

The wardens discovered the bodies of an 18-year-old and 16-year-old, both Eagle Scouts, in the boat and surrounding water. An 11-year-old boy who was admitted to the hospital in critical condition died Monday. Good Samaritans found the youngest victim and performed CPR on him in a nearby boat. All three boys were wearing life vests, authorities said.

Though authorities have yet to publicly identify the victims, one of the teens was the son of the troops scoutmaster and the other was the son of the troops assistant scoutmaster, the Longview News-Journal reported .

Youre talking about great young men, men of integrity, Hallsville Independent School District Band Director Sherri Morgan told a crowd that gathered for a vigil on Sunday night, according to the News-Journal. Were heartbroken, were devastated.

Texas Parks and Wildlife Departments statewide boating accident reconstruction and mapping team is investigating the accident.