Capt. Frank Florio III, Commander of Coast Guard Sector Miami, outlined the details of the incident and the ongoing investigation.

Two girls were killed and two others were critically injured in a collision between a barge and a youth club's sailing vessel Monday in South Florida's Biscayne Bay, authorities said

Two girls died and two others were in critical condition after a large barge crashed into a summer-camp sailboat with five children and a camp counselor aboard in Biscayne Bay near Hibiscus Island in Miami Beach on Monday morning, according to the U.S. Coast Guard.