He said the restaurant will be closed until its maintenance staff can clean up the system.
There were no injuries to employees, customers or firefighters, Canupp said.
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A Butler County fast-food restaurant has closed today after firefighters found grease collected above a fryer.
The smell of smoke was reported around 11 a.m. today inside the Burger King, 7387 N. Liberty Drive. When Liberty Twp. firefighters arrived there was a “fair amount” of smoke inside the restaurant, said Battalion Chief Chad Canupp.