"We expect the global manifestation of hardline approach, including China's and Russia's, as they have influence on North Korea," Yoshihide Suga told reporters at a regular briefing in Tokyo.
According to the Japanese government, a new range of sanctions should be introduced to make Pyongyang abandon development of nuclear weapons and ballistic missiles.
On September 9, Pyongyang carried out a nuclear test at its northeastern nuclear test site. The nuclear experiment is believed to be the fifth and the largest since North Korea started pursuing nuclear and ballistic missile programs, drawing condemnation from the international community.
Last week, the UN Security Council strongly condemned the nuclear test and expressed its determination to work on another round of sanctions against Pyongyang.
