In 1085, he was finally able to undertake a systematic campaign. On 22 May Roger approached Syracuse by sea, while Jordan led a small cavalry detachment 15 miles (24 km) north of the city. On 25 May, the navies of the count and the emir engaged in the harbour—where the latter was killed—while Jordan's forces besieged the city. The siege lasted throughout the summer, but when the city capitulated in March 1086 only Noto was still under Saracen dominion. In February 1091 Noto yielded as well, and the conquest of Sicily was complete.