Photos of the day - May 23, 2016

A Chelsea pensioner is seen through a floral design of the profile of Queen Elizabeth at the Chelsea Flower Show in London on May 23, 2016. (Toby Melville/Reuters)

French workers and protesters stand near a burning barricade to block the entrance of a depot near an oil refinery in Donges, France, May 23, 2016. (Stephane Mahe/Reuters)

A riot police officer fires a tear gas canister to disperse supporters of Kenya’s opposition Coalition for Reforms and Democracy during a protest ahead of next year’s election in Nairobi, Kenya, on May 23, 2016. (Thomas Mukoya/Reuters)

Pittsburgh Pirates pitcher Ryan Vogelsong, right, is helped to a waiting cart after being hit in the head by a pitch from Jordan Lyles of the Colorado Rockies in the second inning of a baseball game in Pittsburgh on May 23, 2016. (Gene J. Puskar/AP)

Sheik Ahmed el-Tayyib, grand imam of Al-Azhar mosque in Cairo, talks with Pope Francis during a private audience in the Apostolic Palace at the Vatican on May 23, 2016. (Max Rossi/AP)

A Syrian army soldier walks near a damaged vehicle after explosions hit a bus station in Jableh on May 23, 2016. (Omar Sanadiki/Reuters)

President Obama attends a press conference with Vietnam’s President Tran Dai Quang at the presidential palace compound in Hanoi on May 23, 2016. (Carlos Barria/Reuters)

German Interior Minister Thomas de Maiziere, center, arrives with the interior minister of Saarland state, Klaus Bouillon, left, for the presentation of a report on crime in Germany, in Berlin on May 23, 2016. (Markus Schreiber/AP)

An activist holds a candle during a protest in Phnom Penh, Cambodia, on May 23, 2016, against the detention of human rights activists who said a woman’s affair with a government official had been covered up. (Heng Sinith/AP)

Kenyan police fire tear gas at protesters throwing rocks in the Kibera slum of Nairobi, Kenya, on May 23, 2016. The protesters are calling for the electoral commission to be dissolved. (Ben Curtis/AP)

Bubbles blown by a Polish street artist float near the Brandenburg Gate in Berlin on May 23, 2016. (Paul Zinken/EPA)

The Czech Republic’s Lukas Rosol returns the ball to the defending champion, Switzerland’s Stan Wawrinka, during their first-round match at the French Open on May 23, 2016, in Paris. (Christophe Ena/AP)

An Indonesian soldier inspects a house covered by volcanic ash after the eruption of Mount Sinabung in northern Sumatra, Indonesia, on May 23, 2016. At least six people were killed, and two were seriously wounded, officials said. (Dedi Sinuhaji/EPA)

German Chancellor Angela Merkel is applauded by Turkish President Recep Tayyip Erdogan after her speech at the World Humanitarian Summit in Istanbul on May 23, 2016. (Ozan Kose/AP)

Yemenis inspect the site of a suicide bombing that targeted young men seeking to join the army, in Aden, Yemen, on May 23, 2016. At least 45 Yemenis were reportedly killed in two suicide bombings. (EPA)

A crane destroys more than a million pirated music, movie and software CDs and DVDs in a government campaign against piracy in Algiers on May 23, 2016. (Ramzi Boudina/Reuters)

A young boy uses a plastic bag to protect himself from a dust storm in New Delhi on May 23, 2016. (Anindito Mukherjee/Reuters)

A government soldier stands at the scene of a roadside bombing in Mogadishu, Somalia, on May 23, 2016. (Feisal Omar/Reuters)

A forensic expert inspects a burned building at the Pitakkiat Wittaya School in Chiang Rai province, Thailand, on May 23, 2016. At least 17 girls reportedly died in the fire. (Athit Perawongmetha/Reuters)

A gymnast poses on top of stones at a garden display at the Chelsea Flower Show in London on May 23, 2016. (Toby Melville/Reuters)

Seen through a broken train window are tents on the railroad near the Idomeni migrant camp in Greece on May 23, 2016. Greek authorities plan to start evacuating the camp within the next few days. (Darko Bandic/AP)

Tourists view a painting on the wall of the Angkor Panorama Museum in Siem Reap, Cambodia, on May 23, 2016. (Mak Remissa/EPA)

Officer Edward Nero, center, one of six Baltimore police officers charged in connection with the death of Freddie Gray, leaves a courthouse after being acquitted on May 23, 2016. (Patrick Semansky/AP)

An army uniform lies in the casket of Army Pvt. Earl Joseph Keating in New Orleans on May 23, 2016. Keating’s remains were discovered recently in New Guinea, where he died in 1942. (Gerald Herbert/AP)

Austin Lee Russell, better known as Chumlee from the TV series “Pawn Stars,” appears in court on May 23, 2016, in Las Vegas, where his lawyers said he would plead guilty to weapon and attempted drug possession charges. (John Locher/AP)