In interview with Guardian Australia, Shingo Yamagami also hints Australia is likely to be invited to G7 summit in Hiroshima

• Get our morning and afternoon news emails, free app or daily news podcast

Japan and Australia will share intelligence assessments about China’s military buildup and intentions under a security deal to be signed by the two prime ministers this weekend.

Japan’s ambassador, Shingo Yamagami, also hinted that Australia was likely to be invited to the G7 summit in Hiroshima next year, saying its participation would be a “natural” step at a time of worsening tensions in the region.

Sign up for our free morning newsletter and afternoon email to get your daily news roundup