24 hours in pictures

Kathmandu, Nepal: Lightning strikes over buildings during a thunderstorm Photograph: Navesh Chitrakar/Reuters

Al-Ghira, Libya: A rebel fighter calls for help moments after a mortar shell fired by Muammar Gaddafi's forces struck on the outskirts of Misrata Photograph: Bernat Armangue/AP

Havana, Cuba: A boy joins a group of workers chanting slogans at the celebration marking May Day in Revolution Square Photograph: Javier Galeano/AP

Washington DC, USA: Students run down Pennsylvania Avenue to join celebrations in front of the White House following the announcement of the death of Osama bin Laden Photograph: Chip Somodevilla/Getty Images

Beijing, China: A child stands behind a door as a man uses a toy to make bubbles Photograph: Ng Han Guan/AP

The Vatican: Swiss guards keep watch as pilgrims file past St Peter's basilica to pray at the coffin of the late pope John Paul II following his beatification Photograph: Filippo Monteforte/AFP

Pindi Gheb, Pakistan: A resident walks past fuel tankers which have been set ablaze. The eight trucks were transporting supplies to Nato forces in Afghanistan Photograph: Mian Khursheed/Reuters

Illinois, USA: A woman stands on a pile of sandbags as others help her sandbag her flooded home in Olive Branch Photograph: Jeff Roberson/AP

Piraeus, Greece: A man reads a newspaper at the port, during a 24-hour port strike Photograph: Kostas Tsironis/AP

Sana'a, Yemen: A girl looks out from the side of female anti-government protesters at the body of Ahmad Saleh during his funeral procession Photograph: Muhammed Muheisen/AP

Cali, Colombia: Riot police stand guard outside a communications company office that was destroyed by protesters during May Day demonstrations Photograph: Jaime Saldarriaga/Reuters

Glastonbury, England: People watch the sunrise as druids and pagans conduct a May Day dawn celebration service in front of St Michael's Tower on Glastonbury Tor Photograph: Matt Cardy/Getty Images