A Coast Guard helicopter stationed in Charleston airlifted a man to Medical University Hospital Tuesday after the man displayed symptoms of a stroke while on a boat off the coast of Edisto, according to a press release issued by the Coast Guard.

Shortly after 7 a.m., the Coast Guard was notified that a medical emergency had occurred on the 32-foot center console boat Double Trouble, which was near the Edisto sea buoy, about 5 miles off the coast.

An HH-65 Dolphin rescue helicopter was deployed from Air Facility Charleston. The crew arrived at 8:13 a.m. and put a rescue swimmer in the water. The rescue swimmer evaluated the patient and asked that a rescue litter be lowered. The unidentified 50-year-old was hoisted aboard the helicopter and taken to the hospital, the statement said. His condition is unknown.