A boat expedition, led by Lieutenant William L. Hudson, departed the ship to circle Andros Island. While Hudson's party was thus engaged, a brig with a convoy of some 20 to 30 boats opened fire on them in the darkness. Although shot went through the sails of "Warren"s boats and through the clothing of some of her sailors, no one was hurt. After this action — which probably occurred because he and his expedition had been mistaken for pirates — Hudson continued on, undaunted. Near the south end of the town of Andros, "Warren"s men brought out one "piratical craft" and burned another in a small bay nearby. At the head of that bay, the American sailors blew up a house believed to have been owned by a pirate and raised and took possession of a boat which had been sunk by pirates to avoid detection by the Americans. "Rob Roy"s master later identified the boat as the craft in which pirates had attacked his vessel.