Colonel William Chewett and Major William Allen of the 3rd York Regiment of militia tried to arrange a capitulation, assisted by Captain John Beverley Robinson, the acting Attorney General of Upper Canada. The process took time. The Americans were angry over their losses, particularly because they believed that the ship and fort had been destroyed after negotiations for surrender had already begun. Nevertheless, Colonel Mitchell of the 3rd U.S. Artillery agreed to terms. While they waited for Dearborn and Chauncey to ratify the terms, the surrendered militia were held prisoner in a blockhouse without food or medical attention for the few wounded. Forsyth's company of the 1st U.S. Rifle Regiment was left as guard in the town. At this stage, few Americans had entered the town.