Halloween – in pictures

Belgrade, Serbia: a woman poses during a Halloween party Photograph: Andrej Isakovic/AFP/Getty Images

Belgrade, Serbia: a woman poses in costume Photograph: Andrej Isakovic/AFP/Getty Images

Caracas, Venezuela: a woman dressed as a zombie Photograph: Boris Vergara/EPA

Caracas, Venezuela: a man poses for a photograph Photograph: Leo Ramirez/AFP/Getty Images

Glasgow, UK: partygoers at the Creatures of the Night Halloween street party Photograph: Sandy Young/PA

Hong Kong: a child in a costume Photograph: Vincent Yu/AP

Mexico City: a doll's head, painted as a skull, sits on an offering as part of Day of the Dead celebrations Photograph: Marco Ugarte/AP

Mexico City: a girl poses in front of candy skulls, which are part of a Day of the Dead offering at Mexico's National Autonomous University Photograph: Marco Ugarte/AP

Mexico: sex workers wear skeleton masks, a traditional symbol representing the Day of the Dead. More than 100 sex workers gathered for a procession to remember their deceased colleagues Photograph: Reuters

New York, US: dogs dressed as a prison guard and a prisioner take part in the 17th annual Doggie Costume Halloween Party Photograph: Timothy A Clary/AFP/Getty Images

Prague, Czech Republic: candles burn on a tombstone Photograph: Filip Singer/EPA

Richboro, US: A giant pumpkin at a farm after a winter storm Photograph: William Thomas Cain/Getty Images

Sheffield, UK: Fright Night is billed as the biggest Halloween carnival in Europe Photograph: Christopher Thomond/Guardian

Sheffield, UK: People dress up for Fright Night Photograph: Christopher Thomond/Guardian

Washington, US: local children and children of military families arrive in the snow to trick-or-treat at the White House Photograph: Joshua Roberts/Reuters

Manilla, Philippines: children prepare to go trick-or-treating Photograph: Bullit Marquez/AP