Flowers bloom at the Shrapnel Valley Cemetery, where servicemen from Australia, New Zealand and Britain units who lost their lives during the Gallipoli campaign are buried or commemorated, in the Gallipoli Peninsula, Turkey, Thursday, April 23, 2015 (Photo: AP)
The Calbuco volcano erupts near Puerto Varas, Chile, Thursday, April 23, 2015 (Photo: AP)
A tree is pictured in a blooming rapeseed field on a spring morning in Vufflens-la-Ville near Lausanne April 23, 2015 (Photo: Reuters)
Russian President Vladimir Putin, fourth from right, listens to visiting Argentina's President Cristina Fernandez, fifth from left, in Moscow's Kremlin on Thursday, April 23, 2015 (Photo: AP)
Due to a train drivers strike the platforms at the central station remain nearly empty in Munich, southern Germany, Thursday, April 23, 2015 (Photo: AP)
A man beats a drum during a prayer ceremony for the 30 Ethiopian citizens killed by Islamic State militants in Libya, at the Holy Trinity Cathedral in the capital Addis Ababa April 23, 2015 (Photo: Reuters)
Palestinians supporting Hamas chant slogans during a rally celebrating Hamas student supporters winning the student council election at Birzeit University in the West Bank city of Ramallah April 23, 2015 (Photo: Reuters)
Demonstrators carry placards during a march against xenophobia in downtown Johannesburg, April 23, 2015 (Photo: Reuters)
A man walks in front of the U.S. Capitol in Washington April 23, 2015 (Photo: Reuters)
Referees and assistant referees are pictured during a training on the occasion of a workshop for the women's FIFA soccer World Cup 2015, Thursday, April 23, 2015 (Photo: AP)