Japanese Foreign Minister Yoshimasa Hayashi and his Chinese counterpart Wang Yi held a meeting for nearly an hour Saturday on the sidelines of the Munich Security Conference in Germany, his office said in a statement.

The statement said the two officials discussed Russia's invasion of Ukraine, a major subject for this year's Munich summit, which is being held only a few days before the one-year anniversary of Moscow's assault.

Hayashi "urged China to respond to the situation in Ukraine as a responsible major power".

He also condemned North Korea's latest missile launch on Saturday, while calling on China "to make positive contributions to the international community under established international rules".

The two officials agreed to hold security and diplomatic talks next week, Hayashi's office said, without clarifying where the meeting would be held.

The last such meeting occurred in November 2019 in Beijing.

Tokyo and Beijing have been at loggerheads for years over the sovereignty of uninhabited islands in the East China Sea, which Japan administers as the Senkakus, but which China claims as the Diaoyus.

Relations soured between the two major Asian powers in 2012, when the Japanese government angered China by nationalising some of the islands.

"Minister Hayashi again expressed serious concerns regarding the East China Sea including the situation surrounding the Senkaku Islands, as well as China's increasingly active military activities near Japan including its coordination with Russia," the Foreign Ministry statement said Saturday.

The upcoming security meeting would also be held in light of Japan's recent accusations that it too had observed Chinese surveillance balloons over its territory in prior years, after Washington shot down what it said was a spy balloon in early February.

Hayashi "clearly conveyed, once again, Japan's position regarding the specific balloon-shaped flying objects that have been detected in Japan's territorial airspace in the past," the statement said.

"I said that if a balloon enters our country's airspace without permission, it would be considered an intrusion no matter which country it came from," Hayashi told reporters after the talks, Kyodo reported.

Japanese media had previously reported that government officials were weighing relaxing rules to allow the shooting down of aerial objects that violate its airspace.