Japan will destroy any North Korean missile that reaches its territory.

Japan intends to destroy any North Korean missiles that violate its territory and is making preparations to do so, its Defense Ministry said Monday, after North Korea informed Japan of a plan to launch a satellite between May 31 and 11th of June.

Nuclear-armed North Korea says it has completed its first military spy satellite and leader Kim Jong Un has approved final preparations for a launch that will put it into orbit.

Analysts say a military satellite would increase North Korea’s surveillance capabilities and improve its ability to strike targets in the event of war.

“We will take destructive measures against ballistic and other missiles that are confirmed to land on our territory,” Japan’s Defense Ministry said in a statement.

The ministry said it would use its Standard Missile-3 (SM-3) or Patriot PAC-3 missile to destroy a North Korean missile.

North Korea has also conducted a series of missile and weapons tests in recent months, including a new solid-propelled ICBM.

North Korea informed the Japanese coast guard of the planned launch between May 31 and June 11, a coast guard official told Reuters, confirming a report by public broadcaster NHK and other media.

Japan’s Chief Cabinet Secretary Hirokazu Matsuno stated that any launch by North Korea, even if qualified as a satellite launch, affected the security of Japanese citizens.

“The government recognizes that there is a possibility that the satellite will cross the territory of our country,” he declared at a press conference.

Japanese Prime Minister Fumio Kishida told reporters that any North Korean missile launch would seriously violate a UN Security Council resolution.

“We strongly urge North Korea to refrain from launching,” the prime minister’s office said earlier on Twitter, adding that it would cooperate “with relevant countries including the United States and South Korea.”

Japan, a staunch US ally, will do everything possible to collect and analyze launch information. North Korean leader Kim Jong Un inspected a military satellite facility in May, North Korean state media KCNA reported.

North Korean media previously criticized plans by South Korea, the United States and Japan to share real-time data on their missile launches, describing the three as discussing “sinister measures” to strengthen military cooperation.

Hyunsu Yim and Nobuhiro Kubo