The PAC (Patriot Advanced Capability)-3 missile interceptors were installed in four western prefectures, Kyodo News service reported.
Pyongyang warned that its missiles would cross over Shimane, Hiroshima and Kochi prefectures before landing in waters off Guam.
Prime Minister Shinzo Abe, who visited his father's tomb in Yamaguchi prefecture, told reporters, the government "will do its utmost to protect the lives and property of the Japanese people."
Pyongyang warned that its missiles would cross over Shimane, Hiroshima and Kochi prefectures before landing in waters off Guam.
Prime Minister Shinzo Abe, who visited his father's tomb in Yamaguchi prefecture, told reporters, the government "will do its utmost to protect the lives and property of the Japanese people."