APEX — Police have charged a man with attempting to rob a Walgreens drugstore at knifepoint early Tuesday morning and stabbing a customer who tried to subdue him.

Witnesses told police that just before 2 a.m. Zachery Lewis Erlemann, 20, used a knife to force two customers to the rear of the store where he attempted to obtain prescription medication from the pharmacist.

Police say Michael Weaver of Durham tried to subdue Erlemann and was stabbed in the arm. Weaver fought back and broke Erlemann’s nose, according to police.

Erlemann fled the store and was arrested about a block away by Apex police. Paramedics treated Erlemann for the broken nose, before he was taken to the Wake County jail.

Erlemann, of 110 Christofle Lane in Cary, was charged with one felony count each of attempted armed robbery, assault with a deadly weapon inflicting serious injuries and first-degree kidnapping, along with two counts of second-degree kidnapping. He was being held in the jail in lieu of a $250,000 bail.