A journalist films an interview as he protects himself from the rain, before a Copa Libertadores soccer match between Brazil's Gremio and Argentina's Rosario Central in Rosario, Argentina, Thursday, May 5, 2016.(AP Photo/Natacha Pisarenko)  Residents of a building in an overlooking slum observe efforts by rescuers to free a woman who was trapped for six days in the rubble of a collapsed building, in the Huruma area of Nairobi, Kenya Thursday, May 5, 2016. After discovering the woman alive and conscious, rescuers administered an IV and oxygen but then had to work for a number of hours to free her from the rubble she was trapped in, before taking her away to hospital. (AP Photo/Ben Curtis)  In this May 1, 2016 photo, a man dresses a donkey to resemble Donald Trump in preparation for the costume competition at the annual donkey festival in Otumba, Mexico state, Mexico. The donkey was later adorned with a blond wig and eyebrows. None of the Trump entrants won much favor with the audience at the 51st annual donkey fest. Audience applause chose donkeys emulating a Smurf, a firefighter and an Uber ride for the first top three prizes. (AP Photo/Rebecca Blackwell)  People hold lit candles during the Orthodox Easter religious service outside the Pasarea monastery, outside Bucharest, Romania, early Sunday, May 1, 2016. Romania's Orthodox majority celebrates easter. (AP Photo/Andreea Alexandru) ROMANIA OUT  A masked protestor stands amid tear gas smoke during clashes with riot police as part of the traditional May Day march in Paris, France, Sunday, May 1st, 2016. Fearing France's worker protections are under threat, hundreds of angry youths on the sidelines of a May Day labor rally hurled stones and wood at police in Paris, receiving repeated bursts of tear gas in response.On (AP Photo/Kamil Zihnioglu)  Kentucky Derby entrant Danzing Candy gets a bath after a morning workout at Churchill Downs Friday, May 6, 2016, in Louisville, Ky. The 142nd running of the Kentucky Derby is scheduled for Saturday, May 7. (AP Photo/Julio Cortez)  A Lebanese fisherman casts his fishing pole from a rocky coastal area along the Beirut coastline in Lebanon, Friday, May 6, 2016. Beirut's coastline has been for thousands of years a vital source of sustenance for local residents but privatization and pollution have now made it increasingly difficult to scrape by on catches from the Mediterranean Sea. (AP Photo/Hassan Ammar)  President Barack Obama drinks filtered Flint, Mich. water during a briefing on the response and recovery plans of the ongoing water crisis by the unified command group at the Food Bank of Eastern Michigan in Flint, Mich., Wednesday, May 4, 2016. (AP Photo/Carolyn Kaster)  A girl grimaces for a selfie as German Chancellor Angela Merkel, left, arrives for a European project day at the Lycee Francais school in Berlin, Germany, Tuesday, May 3, 2016. (AP Photo/Markus Schreiber)  Visitors take photographs next to the still-smouldering pyres of more than 100 tons of elephant tusks and over 1 ton of rhino horns, in Nairobi National Park, Kenya Monday, May 2, 2016. Kenyan and international visitors came on Monday to view the pyres of ivory, believed to be the largest stockpile ever destroyed, after it was set on fire Saturday in a dramatic statement against the trade in ivory and products from endangered species. (AP Photo/Ben Curtis)  Members of the Economic Freedom Fighters (EFF) party arrive by bus for the launch of their municipal election manifesto, in Soweto, South Africa, Saturday, April 30, 2016. Fiery South African opposition politician Julius Malema told 40,000 cheering supporters that President Jacob Zuma should step down before the army turns on him because of the corruption allegations against him.(AP Photo/Denis Farrell)  Motorists travel south on Alberta Highway 63 as the setting sun illuminates a huge plume of smoke from wildfires burning in the distance rising over Fort McMurray, Alberta, Canada, on Wednesday, May 4, 2016. A fire fueled by shifting winds that forced more than 80,000 people to flee their homes and threatened the business district of oil-sands hub Fort McMurray, Canada, raged out of control Wednesday after consuming 80 square kilometers (30 square miles) of land and damaging 1,600 buildings. Photographer: Darryl Dyck/Bloomberg via Getty Images  MADRID, SPAIN - MAY 04: Members of the 501st Legion of Star Wars visit Pediatric Hospital '12 De Octubre' on May 04, 2016 in Madrid, Spain. (Photo by Pablo Cuadra/Getty Images)  HAVANA, CUBA - MAY 2: Cuban Daniel Mikanda waves with an US flag upon the arrival of the cruise ship Adonia, the first US cruise ship in nearly forty years to arrive in Cuba, on May 2, 2016, in Havana, Cuba. The Adonia, belonging to the Carnival group, carried some 700 passengers on its sail from Miami to Havana, officially re-establishing the US cruise business in Cuba.(Photo by Sven Creutzmann/Mambo photo/Getty Images)  OAKLAND, CA - MAY 01: Billy Burns #1 of the Oakland Athletics is surrounded by a flock of seagulls on the field during the ninth inning against the Houston Astros at the Oakland Coliseum on May 1, 2016 in Oakland, California. The Houston Astros defeated the Oakland Athletics 2-1. (Photo by Jason O. Watson/Getty Images)  ROME, ITALY - MAY 01: A life vest is flung as protestors throw smoke bombs at the police during May Day protests on May 01, 2016 in Rome, Italy. Police clashed with protestors as hundreds took to the streets to participate in May Day marches and gatherings across Italy, with many demonstrators protest against Erdogan decisions about the migrant crisis. (Photo by Awakening/Getty Images)  JOHANNESBURG, SOUTH AFRICA - APRIL 30: A crate carrying one of the 33 Lions rescued from circuses in Peru and Columbia is lifted onto the back of a lorry before being transported to a private reserve on April 30, 2016 in Johannesburg, South Africa. A total of 33 former circus Lions, 22 males and 11 females from Peru and Columbia have been airlifted to South Africa to live out their lives on a private reserve in the Limpopo Province. 24 of the animals were rescued in raids on circuses operating in Peru, with the rest voluntarily surrendered by a circus in Colombia after Colombias Congress passed a bill prohibiting circuses from using wild animals. The trip has been coordinated by the animal rights group 'Animal Defenders International'. (Photo by Dan Kitwood/Getty Images)  A general view shows a damaged street with sandbags used as barriers in Aleppo's Saif al-Dawla district, Syria March 6, 2015. REUTERS/Hosam Katan/File Photo TPX IMAGES OF THE DAY  A fisherman walks past a barricade blocking a road during a protest calling on the government to help ease the economic effects of a harmful algal bloom that had affected their livelihoods at Ancud on Chiloe island in Chile, May 5, 2016. REUTERS/Pablo Sanhueza EDITORIAL USE ONLY. NO RESALES. NO ARCHIVE TPX IMAGES OF THE DAY  A girl salutes to visitors before a show at the Mangyongdae Children's Palace in central Pyongyang, North Korea May 5, 2016. Pyongyang held a gala of song and dance performances by local school children on May 5 for visiting delegations of foreign journalists and tourists at the Mangyongdae Children's Palace. The event included orchestral, choir, and acrobatic performances, many of them with political undertones. The Seventh Worker's Party Congress commences on May 6, 2016. REUTERS/Damir Sagolj SEARCH "DAMIR CHILDREN" FOR THIS STORY. SEARCH "THE WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY  Russian Sukhoi Su-34 military jets are seen flying in formation through a glass roof of GUM department store during a rehearsal for the Victory Day parade to mark the 71st anniversary of the victory over Nazi Germany in World War Two, in Red Square in Moscow, Russia, May 5, 2016. REUTERS/Grigory Dukor TPX IMAGES OF THE DAY  Villarrica Volcano is seen at night from Villarrica national park in Pucon, Chile, May 4, 2016. REUTERS/Cristobal Saavedra. EDITORIAL USE ONLY. NO RESALES. NO ARCHIVE. TPX IMAGES OF THE DAY  An aerial view from the helicopter of Alberta Premier Rachel Notley shows smoke rising from raging wildfires which caused the mandatory evacuation of Fort McMurray, Alberta, Canada May 4, 2016. Cheryl Oates/Government of Alberta/Handout via REUTERS TPX IMAGES OF THE DAY ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY  A man holds the hand of a girl as they rush out after rebels bombarded government-held areas of Aleppo, Syria, in this handout picture provided by SANA on May 3, 2016. SANA/Handout via REUTERS TPX IMAGES OF THE DAY ATTENTION EDITORS - THIS IMAGE WAS PROVIDED BY A THIRD PARTY. EDITORIAL USE ONLY. REUTERS IS UNABLE TO INDEPENDENTLY VERIFY THIS IMAGE.  People march through Havana's Revolution Square during a May Day parade in Havana May 1, 2016. REUTERS/Enrique de la Osa TPX IMAGES OF THE DAY  HADALAT, JORDAN - MAY 4: A Syrian refugees sits on a bus headed to a camp at the Jordanian military crossing point of Hadalat at the border with Syria on May 4, 2016 in Hadalat, Jordan. Coming from the cities of Raqaa, Deir Al-Zor and Hama, roughly 300 hundred refugees crossed into Jordan at Hadalat on Wednesday, while over 5000 refugees crossed in the last four days coming from Aleppo. (Photo by Jordan Pix/ Getty Images)
Take a look back at the past week in news through photos from the biggest stories, including May Day and President Obama's visit to Flint, Michigan.