North Korea has warned Japan that Tokyo would be the first target if it decided to play its nuclear card.North Korean News Agency said that Japan’s statements regarding the interception of any missile launched by Pyongyang were “provocative”, warning that such a conduct may lead to a nuclear attack on Tokyo.The warning is in response to Japan\'s standing orders to destroy any missile heading towards the country and assertion that it has already deployed PAC-3 missile interceptor units around Tokyo to protect its capital and is taking North Korea’s rhetoric seriously