A sea turtle, protesters and the migrant crisis in Europe are all featured in this year's World Press Photo competition.
But it was Associated Press photographer Burhan Ozbilici who took out the top prize of World Press Photo of the Year for his image of a gun-wielding off-duty Turkish policeman standing over the body of Russia's ambassador, whom he had just fatally shot.
"It was a very very difficult decision, but in the end we felt that the picture of the year was an explosive image that really spoke to the hatred of our times," member of the jury Mary F Calvert said.
"Every time it came on the screen you almost had to move back because it's such an explosive image and we really felt that it epitomises the definition of what the World Press Photo of the Year is and means."
Ozbilici said of the award-winning photo:
"I immediately decided to do my job because I could be wounded, maybe die, but at least I have to represent good journalism."
The winning image was among 80,408 photos submitted to the prestigious competition by 5,034 photographers from 125 countries. The jury awarded prizes in eight categories to 45 photographers from 25 countries.
The eclectic selection of winners highlighted the dominant news topics of the last year — including conflict in Syria and Iraq, the death of longtime Cuban leader Fidel Castro and the Olympic Games in Rio.
Passive resistance
Thomson Reuters photographer Jonathan Bachman won the Contemporary Issues - Singles category for his image of Ieshia Evans being detained in Baton Rouge during a protest on July 9 over the death of Alton Sterling, a black man killed by police.
Jury chair Stuart Franklin called Bachman's image "an unforgettable sort of comment on passive resistance".
"It's really a lovely photograph. You'll never forget it," he said.

Peaceful protest in Baton Rouge Source: Reuters
From a Kabul hospital to a sea turtle in Spain
Pulitzer Centre for Crisis Reporting photographer Paula Bronstein took out the Daily Life - Singles prize for her photo of a woman holding her two-year-old nephew after he was injured from a bomb blast in Kabul.
Magnus Wennman took out the singles first prize for People for his photo of Maha, 5, in a Debaga refugee camp.

At the hospital, Najiba holds her two-year-old nephew Shabir who was injured from a bomb blast in Kabul. Source: Pulitzer Centre for Crisis
Other winners depicted humanity's devastating effect on wildlife, including a sea turtle entangled in a fishing net swimming off the coast of Tenerife in Spain's Canary Islands.
Valery Melnikov took out the Long-Term Projects prize for Black Days of Ukraine, which shows civilians escaping from a fire at a house destroyed by an air attack in the Luhanskaya village in July, 2014.

A sea turtle entangled in a fishing net swims off the coast of Tenerife, Canary Islands, Spain. Source: World Press Photos

Civilians escape from a fire at a house destroyed by an air attack in the Luhanskaya village. Source: World Press Photo