The collapse of the Kakhovka dam is an environmental catastrophe for people in southern Ukraine. Destroying a dam goes against international law. And, the Migrant Trail walk continues for a 20th year, putting a spotlight on migrant deaths in the Arizona borderlands. The 7-day, 75-mile walk begins in Sasabe, Sonora, and ends in Tucson, Arizona. Also, the fighting between the Sudanese Armed Forces and the paramilitary Rapid Support Forces has spread across the country. A new ceasefire agreement is set to start on June 10. Plus, singing South African firefighters are helping to battle the blazes in Canada.