Police are looking for four men suspected in a rash of armed robberies at Philadelphia area doughnut shops.

Upper Darby police Superintendent Michael Chitwood says the four men apparently held up two Dunkin' Donuts stores in West Philadelphia and one in Upper Darby and attempted to rob a Pizza Hut in Upper Darby — all within the past week.

Chitwood says the suspects walked into the stores, forced employees to the ground, pointed guns at their heads and took money from cash registers or safes. The men then fled. None of the store clerks was physically injured.

Video surveillance cameras have captured the violent holdups in progress.

Philadelphia Police spokeswoman Officer Christine O'Brien says the men made off with some $19,000 from one of the doughnut shops.

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