The owners of a sailboat and barge that collided in Biscayne Bay on Monday, killing two young girls and critically injuring two other girls, are working with commercial salvage to draft a plan to have both vessels removed, according to the U.S. Coast Guard.

Authorities say six people were on the boat Monday, and responders pulled them from the water. According to the U.S. Coast Guard, four were taken to a nearby hospital.