Several leaders of African nations arrived in Ukraine on Friday on a diplomatic tour aimed at encouraging peace negotiations and highlighting the impact of the conflict on their continent. The group, led by South African President Cyril Ramaphosa, traveled by train from Poland to Kyiv. He and leaders from Senegal, Egypt, Zambia and the Comoros later toured the town of Bucha, visiting a church and the site of a mass grave. They are expected to meet later with Ukrainian President Volodymyr Zelensky before traveling on to Russia for talks with President Vladimir Putin on Saturday.