A man pulled from Lake Grapevine about 6:30 p.m. today has been transferred by helicopter ambulance to Harris Methodist Fort Worth hospital, officials said. His name and condition were not expected to be released until early Monday.
The man was among 20 people aboard a two-story charter boat that was about 100 yards from Scott's Landing Marina when the incident occurred.
The boat has a slide from the upper deck. It was unclear whether the man fell or jumped into the water, but witnesses said he appeared to have injured his head, according to Grapevine police and Capt. Neal Bieler, a game warden with the Texas Department of Parks and Wildlife.
Investigators were still interviewing witnesses aboard the boat at 9 p.m. They told officers that the man had been under water for up to 30 minutes before the Grapevine dive team pulled him to the surface.