The United States, Japan, and South Korea will host a trilateral summit in Hiroshima on the fringes of the G7.

A senior U.S. official confirmed on Monday that Vice President Joe Biden will meet with the heads of Japan and South Korea in Hiroshima later this month ahead of the annual summit of the Group of Seven leading countries.

The official spoke anonymously and did not reveal when the three parties met. Diplomatic sources have indicated that it will occur on May 21, the last day of the G7 conference, before Biden flies for Australia.