Sewage in Rio 2016 Olympic sailing venue: Organisers playing 'Russian roulette' with athletes' health
With just 17 months until the 2016 Olympic Games, sewage at Rio's sailing venue is a major concern.
India: Tibetan exiles arrested at Chinese embassy in New Delhi on anniversary of failed uprising
Exiled Tibetans protest at Chinese embassy on anniversary of uprising against China's rule.
Myanmar: Riot police break up student protest with batons in Letpadan [Photo report]
Riot police in Myanmar charge at students with batons as they break up a protest.
Syria: Rebels unveil home-made Volcano cannon and other improvised weapons
Syrian rebels unveil the Volcano, a weapon in the fight against President Bashar Assad's forces.
Archaeologists start excavating 3,000 skeletons from Bedlam burial pit at Crossrail Liverpool Street
The skeletons were discovered in the former burial pit and evidence is carefully recorded.
Iraq: The battle to regain control of Tikrit from Isis rages on
Iraqi forces and Iranian-backed Shi'ite militias fight to retake the city of Tikrit from Isis.
Japan: Dealing with radioactive waste four years after tsunami hit Fukushima nuclear power plant
Radioactive rubbish sits in blue and black plastic sacks in Fukushima four years after the tsunami.
Holi: The Hindu festival of colour in India [Photo report]
People throw coloured powder and water at each other to celebrate Holi, the festival of colour.
China: Ethnic minority delegates in traditional costume add colour to Beijing's National People's Congress
Delegates from all over China have arrived for the opening of the country's parliament meeting.
Battle for Tikrit: Iraqi forces and Shi'ite militia try to retake city from Isis [Photo report]
Iraqi forces launch large-scale offensive to get Tikrit from Islamic State.
Fxxk Air Pollution: China's artists and fashion designers respond to Beijing smog [Photo report]
Artists and designers in China have begun responding to Beijing's dangerous levels of air pollution.
Mexico president UK state visit: Enrique Pena Nieto and wife Angelica Rivera meet the Queen
Mexican President Enrique Pena Nieto's state visit to the UK with his former soap star wife Angelica Rivera.
Geneva International Motor Show 2015: The hottest new models and concept cars
High-end luxury cars take pride of place at this year's Geneva International Motor Show.
Chinese People's Political Consultative Conference (CPPCC) at the Great Hall in Beijing [Photos]
Annual Chinese People's Political Consultative Conference opens at the Great Hall of the People.
Thousands of couples marry in mass wedding at 'Moonies' church in South Korea [Photo report]
Many of the couples met just before the wedding and didn't speak the same language.
Japan's cat island: A visit to Aoshima, where cats outnumber people by six to one
A remote island in southern Japan is home to 22 people and more than 120 cats.
Ukraine: The lives of families sheltering in a basement in Donetsk [Photo report]
Andrew Burton photographs families living in a basement shelter in the Petrovskiy area of Donetsk.
AirAsia Flight QZ8501: Bleached bones found in recovered fuselage wreckage
Bones have been found in AirAsia flight QZ8501's fuselage after it was retrieved from the seabed.
Boris Nemtsov murder: Protesters march past the Kremlin in Moscow calling for a Russia without Putin
Thousands of Russians march through Moscow in memory of murdered Kremlin critic Boris Nemtsov.
Afghanistan: Avalanche death toll rises as rescue workers uncover bodies in villages buried under snow
Rescue operations are underway in Afghanistan's Panjshir province after a massive avalanche.
Nigeria: Troops from Chad parade Boko Haram prisoners
Chadian troops in northern Nigeria show off Boko Haram prisoners, weapons and military vehicles.
Cuban cigar festival lights up in Havana as lifted US trade embargo drives demand
Havana's annual cigar festival attracts aficionados from all over the world.
Inside Donetsk airport: Ukrainian prisoners of war recover bodies from the rubble [Graphic images]
Pro-Russian rebels watch as Ukrainian prisoners search through the ruins to recover dead comrades.
Myanmar: Heartbreaking reunions and ransoms in a Rohingya camp internet hut [Photo report]
Rohingya people speak to relatives and plead with human traffickers from a bamboo internet hut.
Ukraine: Desperate plight of the elderly left behind in the shattered ruins of Debaltseve [Photos]
Most of Debaltseve's 26,000 residents fled, but up to 5,000 stayed, many too elderly to flee.
Secret lives of superheroes: Edy Hardjo photographs Avengers action figures in hilarious poses
Superheroes are caught in hilarious and sometimes compromising positions in these photos.
New York: Manhattan island surrounded by ice as Hudson and East Rivers freeze [Pictures]
Manhattan is surrounded by ice, while Central Park looks like a polar ice cap.
Greece: Galaxidi flour war celebrates end of carnival season and start of Greek Orthodox Lent
Once a year, the elegant seaside Greek town of Galaxidi explodes into chaotic childishness.
Like stepping into the past: Life in a Berber village in the High Atlas mountains of Morocco [Photo report]
Youssef Boudlal documents the lives of Berber people in the High Atlas mountains of Morocco.
Sony World Photography Awards 2015: Open shortlist
Shortlisted images in the Open category of the world's biggest photography competition.