A UPS security guard shot and injured a robbery suspect in Brooklyn, officials say.

The incident happened Monday around 10:30 p.m. at the UPS shipping facility at 104-75 Foster Ave. in Canarsie.

Police say the 38-year-old suspected robber walked into the parcel facility and told employees he had a gun.

According to officials, the suspect simulated having a firearm before a security guard drew his gun and fired at the suspect.

The suspect suffered graze wounds to his ankle, police say.

Police also confirmed the 49-year-old security guard who fired the shots is a retired NYPD officer who left the force just a few years ago.

The suspect was taken to Brookdale Hospital.  

Officials say charges are pending against the suspect while the security guard is not facing any charges in the shooting .