Probe of Philly duck boat crash turns to tug crew

In this photo obtained by Action News, a duck boat can be seen being hit by a city-owned barge on the Delaware River on July 7, 2010.

July 11, 2010 7:55:27 AM PDT
Federal investigators have been spending the weekend interviewing crew members of the tugboat towing a barge that struck an amphibious tourist boat, plunging three dozen people into a Philadelphia river in which two of them drowned.