24 hours in pictures

St Louis, USA: Three thousand flags rise out of the mist at dawn in Forest Park before the start of ceremonies commemorating the 10-year anniversary of the terrorist attacks on the US Photograph: JB Forbes/St Louis Post-Dispatch /AP

Santiago Atitlán, Guatemala: Women wait in line to vote during the country's general elections Photograph: Rodrigo Abd/AP

Bani Walid, Libya: Former rebels play with a donkey on the outskirts of the town, one of the last remaining bastions of Muammar Gaddafi Photograph: Alexandre Meneghini/AP

Medellín, Colombia: Kenyan runner Julius Kipyego Keter cools himself down after crossing the finish line to win the 17th Medellin international half-marathon Photograph: Raul Arboleda/AFP/Getty Images

Santiago, Chile: A demonstrator is hit by a jet of water from a riot police vehicle during a protest marking the 1973 military coup Photograph: Victor Ruiz Caballero/Reuters

New York City, USA: A police officer stands beside his patrol car in Times Square to watch a large screen showing the ceremony to mark the 10-year anniversary of the 9/11 terrorist attacks Photograph: Brian Blanco/EPA

Mumbai, India: Devotees sing and dance as they carry an idol of the Hindu elephant-headed god Ganesh in a procession before immersing it in the Arabian Sea at the end of a 10-day festival Photograph: Rajanish Kakade/AP

Niamey, Niger: A worker carries a basket through an outdoor meat market in Niger's capital Photograph: Finbarr O'Reilly/Reuters

Hanoi, Vietnam: Buddhist novice monks hold candles at a ceremony on the eve of the mid-autumn festival at Duoc Thuong pagoda Photograph: Kham/Reuters

Vancouver, Canada: A group of young people practise their breakdancing moves at Robson Square at dusk Photograph: Andy Clark/Reuters

Kathmandu, Nepal: Locals watch the Indra Jatra festival from a traditional window. Indra Jatra marks the end of the monsoon season and is also celebrated in honour of the god of rain, Indra Photograph: Niranjan Shrestha/AP

Frankfurt, Germany: An employee of German car manufacturer Audi is reflected in a facade at the International Motor Show, which starts on 13 September and runs until 25 September Photograph: Ralph Orlowski/Reuters

Bangkok, Thailand: Tuk, a squirrel kept as a pet by a driver of a Thai three-wheeler known as a tuk-tuk, sits in the back seat. The squirrel is a favourite pet among Thais Photograph: Barbara Walton/EPA

New York City, USA: The Tribute in Light rises over the Brooklyn bridge and lower Manhattan Photograph: Julio Cortez/AP