Eau Claire police arrested a man Tuesday who is accused of robbing an undisclosed amount of morphine from the Value Center Health Mart Pharmacy.

Brent J. McNabb, 23, entered the pharmacy, displayed a handgun and demanded morphine and ran away with an undisclosed amount, according to police.

Eau Claire police officers “promptly identified and preserved physical evidence and surveillance images,” a news release states. On Tuesday, investigators were led to a residence on Barland Street where they found McNaab and arrested him for armed robbery. He was booked in the Eau Claire County Jail.