 Following the capture of Mecca, Ali and the remaining Hejazi forces were concentrated in the port city of Jeddah which would later be besieged in January 1925 by the Saudi forces.The siege lasted until 16 December 1925 when, with British mediation, Sharif Ali surrendered and left the city for Baghdad.In the same month, Ibn Saud declared himself King of Hejaz in addition to Sultan of Nejd.