Zombies invade pittsburg (1988)

Some government chemicals have been dumped by the town of Pittsburgh. Local law enforcement knows about the problem. They try to contact the government, but they, of course, deny all knowledge of it. The biggest problem of all is that the chemicals have caused a zombie outbreak. Yes, the dead are rising from their graves, invading Pittsburgh and eating its residents. It's up to local law enforcement to put an end to the threat.