24 hours in pictures

San Francisco, USA: A man walks past a wall-painted stars and stripes flag in the city's Chinatown area Photograph: Robert Galbraith/Reuters

Mumbai, India: children react to the camera as they wait with their family inside a taxi Photograph: Danish Siddiqui/Reuters

Pyongyang, North Korea: thousands of North Koreans gather in Kim Il-sung Square to hold a mass rally in support of their new leader, Kim Jong-un Photograph: AP

Des Moines, USA: Republican presidential candidate Rick Perry hugs a supporter on the day of the Iowa caucus Photograph: Samantha Sais/Reuters

Silverthorne, USA: ice formations are seen at the Ice Castles attraction in Colorado Photograph: Nathan Armes/Reuters

Pamplona, Spain: shadows of several unemployed citizens are seen on a street while they drink soup and protest against their situation Photograph: Alvaro Barrientos/AP

Quillon, Chile: helicopters fight a massive forest fire in the Bio-Bio region Photograph: Carlos Acuna/AFP/Getty Images

Hyderabad, India: a visually impaired student writes using Braille at Sai Junior College for the Blind on the 203rd anniversary of the birth of the French inventor of the system, Louis Braille Photograph: Noah Seelam/AFP/Getty Images

Pilar, Argentina: wellwishers show support for their president, Cristina Fernandez de Kirchner, outside the hospital where she will undergo surgery for thyroid cancer Photograph: Natacha Pisarenko/AP

Bainbridge Township, USA: cars crawl along Route 422 in near white-out conditions in Ohio Photograph: Amy Sancetta/AP

Tana Toraja, Indonesia: a man uses a machete to kill a buffalo during a Rambu Solo ceremony in Sulawesi province. The traditional sacrificial death ritual was held by the family of a local woman and 200 buffaloes and 500 other animals were slaughtered to feed to guests Photograph: Yusuf Ahmad/Reuters

Sofia, Bulgaria: men dressed as soldiers parade in front of the Alexander Nevski Cathedral during celebrations marking the 134th anniversary of Sofia's liberation from Ottoman rule Photograph: Stoyan Nenov/Reuters