World Press Photo honors photojournalism on the front lines

The 2018 winner, by the Venezuelan photographer Ronaldo Schemidt, shows a protester, Jose Victor Salazar Balza, on fire during violent clashes with riot police at a protest in Caracas against President Nicolas Maduro and his plans to consolidate his political power. Clashes broke out on May 3, 2017, and Salazar was set alight when the gas tank of a motorbike exploded. He survived.

A boat from Lagos Marina is steered through the canals of the Makoko community — an ancient fishing village that has grown into an enormous informal settlement — on the shores of Lagos Lagoon, in Nigeria's capital. Prime real estate along the lagoon waterfront is scarce, and there are moves to demolish communities such as Makoko and build luxury apartment blocks in their place.

The South African photographer Neil Aldridge won the Environment category for this picture of a young southern white rhino, who, blindfolded and drugged, waits after a long journey from South Africa to be released into the Botswana wilds as part of efforts to rebuild threatened rhino populations. Rhinos are killed by poachers for their horns, which are trafficked and sold illegally in Asia.

The winner of the Long-Term Projects-Stories category documents Hannah and Alena, two sisters who live in a bioenergy village of about 170 people in Waldviertel, an isolated rural area of Austria near the Czech border. Kogelman has been photographing Hannah and Alena since 2012. This image shows Alena and two young visitors in one of the barns of the self-sustaining village in 2014.

The winner of Sports category was taken in February 2017 and shows members of opposing teams, the Up’ards and Down’ards, fight for the ball during the historic annual Royal Shrovetide Football Match in Derbyshire, England. The game, reportedly played since the 17th century, involves hundreds of participants over two eight-hour periods. Rules stipulate that players may not murder their opponents.

The US photographer won the Nature category for this symbolic picture of a bald eagle feasting on meat scraps in the garbage bins of a supermarket in Dutch Harbor, Alaska. Once close to extinction, the bald eagle has made a big comeback, especially in Alaska, where in some areas there's one eagle for every 10 people. Locally, the US's national bird is known as the "Dutch Harbor pigeon."

The 2013 World Press Photo of the year by Sweden's Paul Hansen. It shows 2-year-old Suhaib Hijazi and her 3-year-old brother, Muhammad, being carried to a Gaza City mosque by their brothers for their burial ceremony in 2012. The siblings, along with their father, were killed when the family house was destroyed by an Israeli missile strike.