Divers survey Intrepid

Navy divers probed the murky Hudson River on Tuesday to figure out how to free the USS Intrepid from the mud that has stranded the World War II ship at its Manhattan pier.

Crews are working around the clock to remove the mud, including digging a 35-foot trench on one side of the ship, according to Peter Shugert, a spokesman for the Army Corps of Engineers, which is assisting the Navy.