Probe continues after boat sinks off Catalina Island, killing woman

Investigators are still working to find out what caused a boat to sink off Catalina Island, killing a woman. 

The 50-footer took on water early Saturday around two harbors on the north side of the island. 

Lifeguards arrived to find the boat underwater and recovered the body of a 65-year-old woman.

Three other people were rescued, one of whom was rushed to the hospital.