Four people were transported to a New London hospital after their catamaran boat capsized in New York on Sunday.
The incident happened at around 1:30 p.m. near the Race Rock Lighthouse.
The people on board are believed to have been in the water for 20 minutes before the U.S. Coast Guard reached them, police said.
One person was quickly removed from the water and transported to the hospital by the Coast Guard due to his condition, according to police.
Authorities did not disclose further details about his condition.
Firefighters and EMTs then retrieved the remaining three people and brought them back to shore to the U.S. Coast Guard station.
They were brought to Lawrence and Memorial Hospital for hypothermia, according to police.
There is no word on their condition at this time.