A malfunctioning meat smoker at a food stand caused extensive smoke damage Thursday to the Boscov’s Fairgrounds Farmers Market in Muhlenberg Township, a fire investigator said.

Boscov’s officials announced the market would be closed today and Saturday.Crews were called about 7:45 p.m. to a reported fire alarm at the market in the 2900 block of North Fifth Street Highway at Fairgrounds Square Mall.