Our selection of some of the best news photographs taken around the world during the past 24 hours.

Volunteers remove poppies from the memorial art installation in the moat of the Tower of London. On Armistice Day large crowds saw 13-year-old army cadet Harry Hayes place the last of 888,246 ceramic flowers, each representing a British and Commonwealth military death in World War One.

An Indian policemen attempts to put out a burning motorbike near an army camp in Madhya Pradesh's Gwalior district. The vehicles were set ablaze by people alleging irregularities in the army selection process.

US President Barack Obama and China's President Xi Jinping have unveiled new pledges on greenhouse gas emissions, as the leaders met for talks in Beijing. The two countries together produce about 45% of the world's carbon dioxide and it is the first time China has set an approximate date for emissions to peak.

A man walks past a barricade set up by pro-democracy protesters as part of the Occupy Central movement at Mongkok shopping district in Hong Kong. Protesters have been told to clear the sites or face arrest.

Laurence Lynch of Mount Vernon marches with other Vietnam veterans during the annual Veterans Day parade in New York, US.

German European Space Agency (ESA) astronaut Alexander Gerst photographed an aurora as he circled the Earth on the International Space Station (ISS). Gerst returned to Earth on 10 November after spending six months on the ISS. ESA has just released this picture.

In Nicaragua, a farmer rides home after finishing his day's work as the sun sets on the outskirts of Managua.