Fishing in Pennsylvania

Keith Srakocic / AP

Anglers without a license are going to get a chance to fish for free on Sunday.

Tim Regan / Flickr

State officials are warning people not to eat fish caught in a stretch of a western Pennsylvania river after tests found extremely high levels of a potentially dangerous chemical.

Environmental protection officials issued the blanket warning Monday for all fish caught in the Shenango River in Mercer and Lawrence counties after previously advising people to stay away from certain species.