In ordering the capture of Tampico, the American government had intended that Patterson should be at hand to occupy the town, and as this calculation had been upset by Taylor, it now became a question how to retain the prize. The place of the squadron was at sea; without the help of every man it looked almost impossible to manage the vessels in bad weather; and officers of nearly all grades were actually wanting. So Perry in the steamer _Mississippi_ sailed from Tampico on the evening of November 15 for Brazos Island, and the next day left an officer there to explain the situation. Without delay the news was forwarded to Patterson at Camargo, and he directed that men and cannon should go "forthwith" to the captured city. His instructions were not waited for, however. Lieutenant Colonel Belton, who occupied Camp Belknap with six companies of the so-called artillery, embarked for the mouth of the river on hearing from Perry; and on November 21 Colonel Gates and about 500 men sailed from the Brazos in the _Neptune_, leaving two more companies to follow the next day in the _Sea_.[13.35] Both vessels were driven ashore, but fortunately the troops were saved in both cases. By the twenty-third Tampico had therefore a garrison of about 650 good regulars. Some ordnance also arrived; and Conner, besides landing a pair of carronades, remained in the harbor with four or five gunboats. Fortunately the only land approaches were by a neck at each end of the town between Carpintero Lake and the river; and the work of fortifying these, begun at once, was prosecuted night and day.[13.38]