A 17-year-old has been arrested in the killing of Sunshine Stewart, whose body was discovered hours after she went paddleboarding on a wooded pond near coastal Maine.

A cause of death has been revealed for a paddleboarder who was killed in a Maine pond as police confirmed a teenager, 17, has been arrested in connection with the murder.

Sunshine Stewart, 48, was found dead near 100 Acre Island after disappearing while paddle boarding in Union, Maine.