The police experienced difficulty in breaching the radicals' defenses on the top floor, and hours later had not made much headway. They directed high-pressure water hoses at the top floor, gouging out large holes in the building's walls and drenching the radicals and Muta with cold water. During this time, the radicals kept up continuous gunfire on the assaulting police and threw homemade bombs at them. Two policemen, Shigemitsu Takami (42) and Hisataka Uchida (47) were shot and killed and fifteen other policemen were injured. A civilian observer who intruded into the area without police permission was also shot, reportedly by the radicals, and fatally wounded.