Buddhist nuns attend the Vesak Day ceremony at the Udong mountain in Kandal province May 2, 2015 (Photo: Reuters)

Residents walk near damaged buildings in Aleppo's al-Saliheen district, May 2, 2015 (Photo: Reuters)

A general view of the Moroccan Palace Hotel Amanjena resort in Marrakech where soccer player David Beckham is reported to be celebrating his 40th birthday with a grand party in Marrakech, Morocco, May, 2, 2015. Beckham is reported to have many celebrity guests expected to attend his 40th birthday bash, to be held in the luxurious Amanjena resort just outside the ancient Moroccan city of Marrakech on Saturday (Photo: AP)

Visitors walk across a pond on a traditional arched bridge at Kameido Tenjin Shrine in Tokyo, Saturday, May 2, 2015 (Photo: AP)

Head monk Venerable Professor Kollupitiya Mahinda Sangharakkhita Mahathera (C) performs a health and happiness blessing on U.S. Secretary of State John Kerry (L) inside the ancient Kelaniya Temple in Colombo, Sri Lanka, May 2, 2015 (Photo: Reuters)

A ceremonial town crier holds a scroll after announcing the birth of a baby girl to royal fans and members of the media outside the entrance to the Lindo wing of St Mary's Hospital in London, Britain May 2 , 2015 (Photo: Reuters)

Defendants attend their trial at the Primary Court in Kabul, May 2, 2015. Dozens of Afghan men including several policemen faced trial on Saturday over the mob killing in Kabul of a 27-year-old woman accused of burning a Koran, a lynching that prompted unprecedented protests (Photo: Reuters)

A Nepalese woman participates in a candle light vigil for victims of last week's earthquake in Kathmandu, Nepal, Saturday, May 2, 2015 (Photo: AP)

An aerial view of houses damaged by last week's earthquake is seen near Sirdibas, Nepal May 2, 2015 (Photo: Reuters)

A woman uses a selfie stick to take souvenir photo of herself next to a bride and groom posing for wedding photos against a replica Germany's Neuschwanstein Castle at the World Park in Beijing, China, Saturday, May 2, 2015 (Photo: AP)

Devotees carry water pots to water a Bodhi tree during Kason Watering Festival celebrations at the Shwedagon Pagoda in Yangon May 2, 2015 (Photo: Reuters)

People enjoy the sunny weather at Cabanyal beach during the warmest weekend of the year so far, with temperatures up to 30 C (86 F), in Valencia, Spain, May 2, 2015 (Photo: Reuters)

An Iranian boy flies a kite during the ancient festival of Sizdeh Bedar, an annual public picnic day on the 13th day of the Iranian new year, at the Pardisan Park in Tehran, Iran, May 2, 2015 (Photo: AP)

A general view of Calbuco volcano spewing ash and smoke near Ensenada town, May 2, 2015 (Photo: reuters)