TINICUM TWP., Pa. (WPVI) -- Emergency crews responded Wednesday to a hazmat incident in the Delaware River in Delaware County.
Crews were called to the river off Jansan Avenue in Tinicum Township around 5 p.m.
[Ads /]
Officials discovered an oil sheen along the river.
Officials do not believe it came from any of the refineries.
[Ads /]
DEP and U.S. Coast Guard crews are investigating.