Japan installed the final piece of a missile defense system for Tokyo on Saturday, a day after North Korea test-fired a barrage of missiles.

Air Self-Defense Force personnel installed a land-based Patriot Advanced Capability-3 missile intercepter system at the Kasumigaura base in Ibaraki Prefecture, defense official Keisuke Tanaka said.

The latest installation is the last of four PAC-3 batteries deployed around Tokyo to protect the capital, Tanaka said.

The system at the Kasumigaura base, 75 km northeast of Tokyo, includes five launchers, a special vehicle with radar and another that serves as a control station, he said.