Week in pictures: From Brazil floods to a historic solar storm

Fireworks go off as the French 19th-century three-masted barque Belem (C) arrives at the Vieux-Port (Old Port) during the Olympic Flame arrival ceremony, ahead of the Paris 2024 Olympic and Paralympic Games, in Marseille, France. The transfer of the flame onshore from a 19th-century tall ship marked the start of a 12,000km (7,500-mile) torch relay across mainland France and the country's far-flung overseas territories. [Sylvain Thomas/AFP]

People walk along a flooded street of Eldorado do Sul, Rio Grande do Sul, Brazil. Teams raced against the clock to deliver aid to flood-stricken communities in southern Brazil before the arrival of new storms forecast to batter the region again. Some 400 municipalities have been affected by the worst natural calamity ever to hit the state of Rio Grande do Sul, with at least 107 people dead and hundreds of others injured. [Anselmo Cunha/AFP]

Performers walk with bicycles depicting the transportion of food and necessities for the battlefield during official celebrations of the 70th anniversary of the 1954 Dien Bien Phu victory over French colonial forces in Dien Bien Phu city, Vietnam. War veterans, soldiers and dignitaries gathered in Dien Bien Phu to mark the anniversary of the battle that ultimately brought an end to the French empire in Indochina. [Nhac Nguyen/AFP]

Israeli soldiers stand next to military vehicles near the boundary with Gaza, in Israel, amid Israel's war on the Palestinian territory. [Amir Cohen/Reuters]

Displaced Palestinians evacuate from the Tall az-Zaatar camp for Palestinian refugees in the northern Gaza Strip. [AFP]

Participants sit together during a pro-Palestinian demonstration by the group 'Student Coalition Berlin' in the theatre courtyard of the Free University of Berlin, in Berlin, Germany. [Markus Schreiber/AP Photo]

Russian servicemen march during the Victory Day military parade in Moscow, Russia, marking the 79th anniversary of the end of World War II. [Alexander Zemlianichenko/AP Photo]

Nina, mother of Ukrainian serviceman Eduard Khatmullin, who was killed in the battle against Russian troops, kisses the flag that would cover her son's coffin during the funeral service in Independence Square in Kyiv, Ukraine. [Efrem Lukatsky/AP Photo]

A member of the Orduno Castro family, who lives in North Carolina and cannot cross into Mexico, kisses her niece during a family meeting at the border fence that separates Mexico and the United States, ahead of Mother's Day, as seen from Mexicali, Mexico. [Victor Medina/Reuters]

Rescuers celebrate after saving a construction worker trapped under a building that collapsed in George, South Africa. [Esa Alexander/Reuters]

In this image taken with a long exposure, people look at the night sky towards the northern lights, or Aurora Borealis in Estacada, Oregon, United States. A rare severe geomagnetic storm occurred when a solar outburst reached Earth on Friday afternoon, hours sooner than anticipated. The effects lasted throughout a few days. [Jenny Kane/AP Photo]