24 hours in pictures

Barquisimeto, Venezuela: a supporter of opposition challenger Henrique Capriles wears a mask of Venezuelan president Hugo Chávez. Venezuelans go to the polls on Sunday Photograph: Fernando Llano/AP

New Delhi, India: Indian labourers sit in the morning sun on the roof of an old haveli (mansion) in the city's spice market Photograph: Kevin Frayer/AP

Mexico City, Mexico: police officers guard the entrance to a federal district government building during a protest by street artists at Zócalo Square Photograph: Reuters

Scotland, UK: coloured lights illuminate trees in Faskally Wood in Pitlochry Photograph: Russell Cheyne/Reuters

Aleppo, Syria: a civilian, wounded from shelling on a refugee centre, receives treatment at Dar al-Shifa hospital Photograph: Zac Baillie/AFP/Getty Images

São Paulo, Brazil: a dog stands next to its owner during a mass before getting blessed by a priest at São Francisco de Assis church, where owners bring their pets every year Photograph: Nacho Doce/Reuters

Lisbon, Portugal: demonstrators shout slogans during a protest against the government's austerity measures outside the São Bento Palace, site of the Portuguese parliament Photograph: Patricia De Melo Moreira/AFP/Getty Images

Maryland, USA: a woman harvests tobacco leaves on a farm Photograph: Mark Wilson/Getty Images

Afula, Israel: a flock of pelicans on the verge of take-off from a lake Photograph: Menahem Kahana/AFP/Getty Images

Afula, Israel: people enjoy the spectacle at the international Gilboa hot air balloon festival Photograph: Menahem Kahana/AFP/Getty Images

Shanghai, China: visitors view a sculpture by Indian artist Subodh Gupta, on show as part of the Jing'An international sculpture project biennial Photograph: Eugene Hoshiko/AP

Madhya Pradesh, India: police personnel use water canons and canes to disperse demonstrators protesting against corruption and deteriorating law and order in the state Photograph: Sanjeev Gupta/EPA

Yokohama, Japan: Mutsuo Koga, kitted out in Japanese armour and helmet, bows beside the pool before showing off his skills at a traditional swimming competition. The competition takes after the training that samurai in feudal Japan would practise Photograph: Toshifumi Kitamura/AFP/Getty Images