FOXPHILADELPHIA: The NTSB says in its interviews, the Duck Boat captain said he made radio calls to the Caribbean Sea, the tug pulling the barge, without a response from the tug boat. Other people on nearby vessels also heard the distress calls from the Duck Boat. The NTSB says the mate of the tug took the fifth amendment and would not speak with investigators. There were four other crew members on the tug. On deckhand was sleeping at the time of the accident, while the three other crew members, including the ship’s master, spoke with investigators. The Caribbean Sea’s GPS and electronic chart navigation devices were also removed from the vessel and taken to NTSB Headquarters for analysis. MORE

ASSOCIATED PRESS: The Coast Guard says a crew member refusing to talk to federal investigators about a fatal duck boat crash in Philadelphia was piloting the tug that slammed into the duck boat. The National Transportation and Safety Board says the mate “exercised his Fifth Amendment right and refused to meet with investigators” over the weekend. U.S. Coast Guard Capt. Todd Gatlin tells The Associated Press the mate was on duty as the tug pushed a 250-foot barge up the Delaware River. MORE