A man pretending to be a customer robbed a donut shop in northwest Harris County.

According to sheriff deputies, the man walked into Sandra's Donuts in the 5100 block of FM 1960 just before 7 a.m. Thursday. 

Officials said the man ordered a donut, and when the clerk gave him his total, he pulled out a gun. 

The suspect demanded all of the money in the register, according to authorities. 

As he was leaving, officials said the man fired a shot into the counter. 

He then drove off in a white four-door car.

Officials said the suspect was last seen wearing a red and black jacket, dark jeans and a baseball cap.