Robbery at Costco

A woman was robbed of her purse in the parking lot of Costco at around 5 o'clock this afternoon.  One of the two suspects had a black handgun.  Suspect vehicle is a black 2006 Infinity 4 door.  At 5:03 one of the LPR cameras spotted it eastbound on Auto Mall out of the Pacific Commons area.  The vehicle is registered in Oakland.