The thief pried open the register of the Allwood Road store around 7:20 p.m. Friday during business hours, Police Detective Lt. Robert Bracken told Daily Voice.
The 30-something Hispanic man "was confronted by a female employee whom he then assaulted by pushing her up against a wall," Bracken said.
The employee wasn't injured, he said.
Bracken asked that anyone with information that could help the investigation call Clifton PD: (973) 470-5900.
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