NEW YORK -- The NYPD credits an alert witness for helping get several high-powered guns off the street.

Police say they received a 911 call Tuesday night from someone who saw a man with a gun at 54th Street and Park Avenue.

A short time later, officers pulled over the man, who they say told them he had a loaded rifle in his car.

In addition, police say they found multiple guns and ammo in the trunk of the vehicle.

Sources tell us the 44-year-old suspect had bought the guns legally in Texas, where he lives.

Police are investigating but say there did not appear to be a threat to the public.

The suspect is facing several weapons charges.