Chico Police are searching for an armed robber on the loose tonight. Police tell Action News Now that a Mountain Mikes delivery driver was delivering pizza to a home near 14th Street and Chesnut, when he stepped out of his car and was approached by a masked man holding a gun. The robber stuck the gun in delivery driver's face and demanded his wallet. Police say the victim fought back and the robber ran off, and dropped the wallet on the ground. The victim was not hurt during the incident and the robber got away. So far no arrest has been made.