24 hours in pictures

Malakal, Sudan: A Sudanese woman with ethnic Nuer tribal scarification stands outside her grass hut. The Nuer receive facial markings during initiation into adulthood
Photograph: Finbarr O'reilly/Reuters

Siliguri, India: A Hindu priest holds a human skull as worshippers offer prayers to the Hindu god Shiva ahead of the religious festival locally known as Charak
Photograph: Rupak De Chowdhuri/Reuters

La Paz, Bolivia: A bodybuilder is sprayed with tan lotion before competing in a regional championship
Photograph: Dado Galdieri/AP

Bangkok, Thailand: A protester wearing a gas mask sits in a seized army armoured vehicle after overnight clashes between the military and Red Shirt protesters
Photograph: Manpreet Romana/AFP/Getty Images

Mullens, USA: A woman holds a candle and her dog Gizmo during a vigil to commemorate the 29 miners who were killed in an explosion at Massey Energy Co's Upper Big Branch mine
Photograph: Carolyn Kaster/AP

Erg Merzouga, Morocco: Competitors walk during the 25th Marathon des Sables. The marathon covers a distance equivalent to six marathons over six days through the southern Moroccan desert
Photograph: Pierre Verdy/AFP/Getty Images

Niteroi, Brazil: Rescue workers watch as they give instructions to a bulldozer removing mud during a search for victims after a landslide
Photograph: Felipe Dana/AP

Sydney, Australia: Competitors jump into the water to begin the first swim leg during the first men's race in the ITU triathlon series
Photograph: Rick Rycroft/AP

Biegen, Germany: A stork covered in a light blue colour pairs with a female white stork in their nest. Experts assume that the colouring of the plumage is caused by blue paint
Photograph: Michael Urban/AFP/Getty Images

Kandahar, Afghanistan: An Afghan deminer from ECC/G4S-ordnance management searches for unexploded explosive devices on an old battleground
Photograph: Tim Wimborne/Reuters

Washington, USA: Workers erect iron fences around the Washington Convention Centre ahead of the nuclear security summit
Photograph: Jewel Samad/AFP/Getty Images

Warsaw, Poland: A sea of candles laid out in front of the presidential palace in the early hours following the Polish government Tupolev Tu-154 aircraft crash near Smolensk airport
Photograph: Joe Klamar/AFP/Getty Images