Police are searching for a man who is accused of kidnapping a couple of young girls in Providence.  Irvin Sanchez accused his female roommate of stealing from him during an argument on Wednesday afternoon.  After the incident, Sanchez allegedly took off with the woman's two young daughters.  The girls were found a short time later at a store on Westminster Street.  Sanchez is believed to be driving a black Volkswagen.  Anyone with information about his whereabouts is urged to call police.