After the Special Forces team retreated from the house, soldiers from the 101st Airborne Division and 3/327th Infantry surrounded the safehouse and opened fire with Mk 19 grenade launchers, AT4 rockets, and Humvee-mounted .50-caliber M2 Browning machine guns, and an intense gun battle ensued. By 11:22 AM, over an hour into the firefight, more than 200 reinforcement soldiers had arrived to assist the task force.