North Korea will be a topic when President Barack Obama and other leaders of the Group of Seven countries hold a summit in Japan next week, the White House said Tuesday.

"I'm confident that this is an issue that will be discussed at the G-7 meeting in Japan. Obviously the world is concerned about the provocations and destabilizing activities of the North Korean regime," White House press secretary Josh Earnest said at a regular briefing.

The U.S. will continue to work with the international community to isolate the North "until they make clear that they're prepared to denuclearize the Korean Peninsula and stop engaging in the kinds of provocative acts that are broadly destabilizing," Earnest said.

"It will be up to the North Koreans to decide whether or not they're ready to commit to denuclearizing the Korean Peninsula.

Until they do, they're going to continue to face the kind of isolation that they currently suffer from," he said.

The G7 summit is set for May 26-27 in the Japanese city of Ise-Shima. (Yonhap)