The Group of Seven science ministers have confirmed that they will promote research data openness among countries while raising concerns over the misuse of such information by others.

The officials approved a joint statement on Saturday on their second day of talks in the northeastern Japanese city of Sendai.

It said the countries will promote "open science," in which researchers around the world share each country's research data and academic papers.

But the statement expressed concern that some actors may attempt to unfairly exploit or distort the open research environment and misappropriate research results for military purposes. This is an apparent reference to China.

It also included an apparent warning against increased maritime activities around the Arctic by China and Russia.

The statement pointed out that Arctic research should be conducted "with long term research relationships built on trust, respect and mutual interests."

The statement also said the countries will work together in reducing space debris to ensure the safe use of outer space, which is a crucial venue for scientific research and national security.

Japan's science minister, Takaichi Sanae, said it was a very fruitful meeting in addressing global challenges.

She said Japan will work with other G7 nations to promote research data openness with countries with shared values to create an environment in which researchers can feel safe cooperating with each other.