Each year, World Press Photo names the best news photographs in eight fields, along with the photo of the year.
In the 2017 photo of the year, Mevlüt Mert Altıntaş raises his hand after fatally shooting Andrey Karlov, the Russian ambassador to Turkey, at an art gallery in Ankara, Turkey, in December. He still holds the gun in his right hand.
Click through this gallery to see the photos that won top prizes in different categories. To see winners of long-term project and photo story awards, visit Worldpressphoto.org.
Taking a Stand in Baton Rouge (Contemporary Issues, first prize)
Activist Ieshia Evans, 28, offers her hands for arrest during a July protest against the fatal shooting of Alton Sterling by two Louisiana police officers.
The Silent Victims of a Forgotten War (Daily Life, first prize)
A woman at a hospital holds her two-year-old nephew, who was injured in a bomb blast in Kabul, Afghanistan, in March.
Sweat Makes Champions (Daily Life, second prize)
Students of a gymnastics school in Xuzhou, China, perform toe-pressure training in July.
Caretta Caretta Trapped (Nature, first prize)
A sea turtle ensnared in a fishing net swims off the coast of Tenerife, Canary Islands, Spain, in June.
Life Inside The Philippines' Most Overcrowded Jail (General News, third prize)
Inmates sleep on the steps of a ladder inside the overcrowded Quezon City jail in Manila, Philippines, in July. The jail was built to house 800 inmates, but held 3,000 more than that.
Grand National Steeplechase (Sports, first prize)
Jockey Nina Carberry flies off her horse during April’s Grand National steeplechase in Liverpool, England.
China’s Wild West (Daily Life, third prize)
A Uyghur woman carries money in her stockings while riding a train from Kashgar, China, in June.
The Dive (Sports, second prize)
Gaël Monfils of France dives for the ball during the Australian Open.
Fidelity (People, third prize)
A woman strokes a girl’s head in a police station in Camagüey, Cuba, in December.
Monarchs in the Snow (Nature, third prize)
Monarch butterflies cover the forest floor of a Mexican butterfly sanctuary after a March snow storm.
What ISIS Left Behind (People, first prize)
Maha, 5, lies on a dirty mattress in a refugee camp after she and her family fled from her village outside of Mosul, Iraq, in September.
Left Alone (General News, second prize)
An 11-year-old Nigerian girl (left) cries next to her 10-year-old brother aboard a rescue boat north of Sabratha, Libya, in July.
Rio's Golden Smile (Sports, third prize)
Usain Bolt of Jamaica beams as he wins the 100-meter semi-final sprint at the 2016 Summer Olympics in Brazil.
Medics Assist a Wounded Girl (Spot News, second prize)
A girl, injured in reported government airstrikes on the rebel-held town of Douma, Syria, cries in a makeshift hospital in September.
Offensive on Mosul (General News, first prize)
Children react as Iraqi Special Operations Forces in Mosul search for ISIS members in November.
Praying for a Miracle (People, second prize)
Hellen, 41, is photographed in South Sudan in April. She suffers from a mental health problem which developed later in her life.
Big Cat in My Backyard (Nature, second prize)
A wild leopard walks through Sanjay Gandhi National Park in Mumbai, India, in September.
The Libyan Migrant Trap (Contemporary Issues, third prize)
Two Nigerian refugees cry and hug in August at a refugee center in Surman, Libya.
Pakistan Bomb Blast (Spot News, first prize)
Lawyers attend to injured colleagues after an August bomb explosion in Quetta, Pakistan. The crowd had gathered to mourn a lawyer who had been assassinated hours earlier.
Migrant Crossing (Contemporary Issues, second prize)
Two men support a woman crossing a river on the Greek-Macedonian border in March as refugees try to reach Macedonia on a path that would avoid a border fence.
Battle for Mosul (Spot News, third prize)
A car bomb explodes next to Iraqi special forces armored vehicles as they drive toward ISIS-held territory in Mosul, Iraq, in November.