The Japanese government believes new provocations, including missile launches or nuclear tests, could be expected before or immediately after October 10, according to NHK.
In 2016, Pyongyang launched a missile on October 15, five days after the holiday. In 2006, North Korea conducted its first test of a nuclear weapon also around this day.
On Tuesday morning, North Korea fired a ballistic missile that flew over the territory of Japan and fell in the Pacific Ocean. It was the first missile launch over Japan since 2017. Last week Pyongyang also conducted several missile launches.
Media reported earlier in the week that North Korea could test its nuclear weapons for the seventh time in its history between October 16 and November 8.