A man was injured Saturday morning while trying to stop a would-be shoplifter at a Target retail store in the Loop, police said.

Shortly after 9 a.m., the 25-year-old was inside the store at 1 S. State St. when he confronted a man he believed was shoplifting, according to Chicago police.

The suspected shoplifter pulled a knife from his waistband and swung at the man before fleeing the store and he suffered a laceration to his arm, police said.

The injured man was taken to Northwestern Memorial Hospital in good condition, police said.

Police said officers located the suspected shoplifter and charges were pending.