Anne Arundel County Police Sunday were looking for a man they say robbed someone in the Maryland Live Casino parking garage early Saturday morning.

Police released video surveillance images of a man they said approached the victim in his car about 7 a.m. Saturday, displayed a gun and demanded money. The victim was in his car with a woman when the robbery occurred, said Lt. T.J. Smith. The victim had exited the casino earlier.

The suspect fled in a black Nissan Altima, video images show, Smith said.

“We have good images of him on video, and detectives are working around the clock,” he said Sunday.

Police are working with security from the casino-entertainment complex and the Arundel Mills Mall, which share parking.

Smith said most other crimes around the casino, which opened in 2012, have been solved with good video images. Two robberies took place on the same day last summer, he said.