The foot of a homeless Egyptian boy is seen as he sleeps under a bridge in Cairo, Egypt, Friday, May 15, 2015 (Photo: AP)
A Palestinian boy walks with a Palestinian flag during a rally marking Nakba Day in Maroun al-Rass near the Israeli border in south Lebanon May 15, 2015 (Photo: Reuters)
A Palestinian protester uses a slingshot to throw stones towards Israeli troops during clashes following a rally marking Nakba Day near Israel's Ofer Prison near the West Bank city of Ramallah May 15, 2015 (Photo: Reuters)
A Palestinian woman holds a Koran as others wave flags after Friday prayers during a protest to mark Nakba Day near the Dome of the Rock on the compound known to Muslims as Noble Sanctuary and to Jews as Temple Mount, in Jerusalem's Old City May 15, 2015 (Photo: Reuters)
People light earthen lamps to pay tribute to the victims of Wednesday's bus attack, in Karachi, Pakistan, Friday, May 15, 2015 (Photo: AP)
Skyscrapers Shanghai World Financial Center (R) and Jin Mao Tower are seen during heavy rain at the financial district of Pudong in Shanghai May 15, 2015 (Photo: Reuters)
Smoke from a bus set on fire by protesters billows from downtown, seen from the Sao Carlos slum complex where the bodies of two men were found in Rio de Janeiro, Brazil, Friday, May 15, 2015 (Photo: AP)
People are reflected in mirrors at an entrance to a department store in the fashion district of Harajuku in Tokyo May 15, 2015 (Photo: Reuters)
The 'Milky Way' is seen in the night sky over rocks in the White Desert north of the Farafra Oasis southwest of Cairo May 15, 2015 (Photo: Reuters)
A juvenile bald eagle takes flight past a willow tree after staff and students from the LSU Veterinary School released him back into the wild near Lake Verret in Napoleonville, La., Friday, May 15, 2015 (Photo: AP)
Boys walk behind patrolling soldiers in Bujumbura, Burundi, May 15, 2015 (Photo: Reuters)
People attend a gathering to mark the fourth anniversary of the 15M movement at Madrid's landmark Puerta del Sol Square, Spain, May 15, 2015 (Photo: Reuters)