The Japanese government says Ukrainian President Volodymyr Zelenskyy will visit Hiroshima to attend the Group of Seven summit in person.
The government said on Saturday that he is expected to take part in a session on Sunday on the conflict in Ukraine and hold talks with Prime Minister Kishida Fumio.
Diplomatic sources say Zelenskyy has left Saudi Arabia, where he was visiting, onboard a French government plane and is likely to arrive in Hiroshima on Saturday afternoon.
G7 leaders began their second day of summit talks on Saturday.
They are focusing on ways to boost engagement with emerging and developing nations collectively known as the Global South.
Before the session, Kishida met separately with Indian Prime Minister Narendra Modi, Indonesian President Joko Widodo and Brazilian President Luiz Inacio Lula da Silva.
They are among the major Global South countries invited to the summit. Many of these countries have taken a neutral stance on Russia's invasion of Ukraine.
After the morning talks, the G7 leaders will hold another session over lunch on economic resilience and security. They are expected to discuss how to counter "economic coercion," in an apparent bid to keep China in check.
In the midafternoon, an outreach meeting is scheduled to take place. Leaders of the invited countries and representatives of international organizations will be joining the talks.
The agenda will include global issues such as food and energy crises.