Local defense and police personnel, and U.S. Navy firefighters stationed at the base here, participated in drills Tuesday involving simulated chemical attacks by terrorists.
The participants worked together to deal with a scenario in which sarin nerve gas was released inside a hotel, causing health problems to scores of guests.
The Ground Self-Defense Force, Kanagawa Prefectural Police and the U.S. Navy's fire brigade stationed at the base participated.
The drills reflect an agreement between the fire brigade and the city of Yokosuka that stipulates both sides will cooperate in the event of disasters on or off the base, the organizers said. The drills included rescuing the injured and analyzing the chemical substance.