Japan working on central Tokyo missile shield: official

TOKYO: Japan on Tuesday carried out studies to deploy a missile defence shield in central Tokyo, officials said Tuesday, amid concern that the capital is at risk from North Korea.
The defence ministry conducted investigations on Monday and Tuesday into two locations for US-developed Patriot Advanced Capability-3 (PAC-3) surface-to-air interceptors, a defence spokesman said.
Two PAC-3 units were installed in suburban Tokyo last March, as Japan's relations remained tense with nuclear-armed North Korea.
"We took surveys of buildings, which would be obstacles for the PAC-3, and conducted technical tests on communications," the spokesman said.