Four people were rescued from the choppy, cold waters off Race Rock Light after their catamaran capsized Sunday afternoon, according to the New London Fire Department.

After receiving a call around 1:24 p.m., the U.S. Coast Guard sent a rescue boat to the area off the western edge of Fishers Island and found four people in the water. The Coast Guard quickly removed one person from the water who was “rapidly transported … due to his condition” to the New London Coast Guard station, while the other three people were pulled out of the water by a private boat.

A New London ambulance was waiting and transported the first victim to Lawrence + Memorial Hospital for treatment.

New London firefighters and EMTs riding on a Coast Guard boat met the other three people, who were being transported to shore. The three were then brought onto the Coast Guard boat and transported to the hospital once they reached the Coast Guard station.

All four were estimated to have been in the water for approximately 20 minutes and were treated at the hospital for hypothermia.