Updated

Officers responding to reports of gunfire fatally shot the suspected gunman outside an auto parts store in Indiana's second-largest city, police said Monday.

Fort Wayne police spokesman John Chambers said state troopers and city officers found the armed man about 9:30 p.m. Sunday outside an Auto Zone store.

The gunman ran away and opened fire on the officers, Chambers said. The officers returned fire, shooting the man to death. The man, whose name wasn't immediately released, was pronounced dead at the scene in Fort Wayne, about 120 miles northeast of Indianapolis.

State Police Sgt. Ron Galaviz said Monday that it's not known which officer fired the shots that struck the gunman.

The gunman had earlier shot at a man inside the Auto Zone store who was taken to a hospital in serious condition, police said.

WANE-TV reports that a witness to the shooting said they heard 18 to 20 gunshots as they were sitting in the drive-thru at a nearby Lee's Famous Recipe restaurant.

And Fort Wayne resident Milton Seals said his 17-year-old daughter called him from inside the restaurant after the shooting and ask him to come pick her up. Seals told The Journal Gazette that the shooting had left them both shaken and scared.