PHILADELPHIA (WPVI) -- A cargo ship was damaged after it ran aground in the Delaware River earlier this week, the U.S. Coast Guard said.
The 623-foot Algoma Verity has been struck just north of the Ben Franklin Bridge in Philadelphia's Fishtown section since Wednesday night.
In an update Friday, the Coast Guard said four ballast tanks and an empty fuel tank were damaged.
Inspectors have found no signs of pollution, but are continuing to monitor the situation.
The Coast Guard is collaborating with the Army Corps of Engineers and divers to free the vessel.
The vessel is carrying 45,000 tons of solar salt, which is commonly used as a water softener.
Some 30 crew members were on board when it veered slightly off-course in the river's shipping lane.
The ship is destined for port in Fairless Hills, Bucks County.