By CBS 2 Chicago Staff

CHICAGO (CBS) — A robber was shot dead by a cellphone store employee who had a concealed handgun permit in the Humboldt Park neighborhood Saturday evening, police said.

At 6:50 p.m., the suspected robber walked into the Metro by T-Mobile store at 3243 W. Chicago Ave., near Spaulding Avenue, and took out a gun, demanding property, police said.

READ MORE: Chicago Weather: Freeze Warning In Effect; Warmup On The Way

A 29-year-old store employee, who had a valid Firearm Owners Identification Card and concealed carry license, took out his own gun and shot the man who was robbing the store, police said.

The robber was struck in the chest and was taken to Stroger Hospital of Cook County in critical condition, and under police guard, police said. The robber was later pronounced dead.

READ MORE: Chicago Weather: Freeze Warning Midnight-9 a.m.

Two guns were recovered – one from the robber and the other from the man who shot him, police said.

Area Four detectives were investigating late Saturday.

MORE NEWS: ONLY ON 2: UPS 'Package Man' Comes To The Rescue When Heavy Package Falls On 4-Year-Old Oak Park Boy

Also From CBS Chicago:

CBS 2 Chicago Staff