LIVERPOOL, England—Artist Mark Wallinger won Britain's Turner Prize on Monday for State Britain, which replicates the encampment of antiwar protester Brian Haw, who kept vigil alone for more than six years in London's Parliament Square, the Associated Press reports.

"Brian Haw is a remarkable man who has waged a tireless campaign against the folly and hubris of this government's foreign policy," Wallinger said when he accepted Britain's most prestigious art prize, which honors young artists and comes with $51,000, in northern England.

Haw began demonstrating in June 2001 against sanctions imposed on Iraq and continued to protest the British and American invasions. Over time, he amassed posters, crosses, teddy bears, and images of children injured or killed by U.S. weapons.

Police impounded most of the items last year. Wallinger meticulously reproduced them, including Haw's tarpaulin shelter, tea-making area, and weather-beaten poster calling U.S. President George Bush and former British Prime Minister Tony Blair "baby killers."

The Turner Prize judges said Wallinger's reconstruction, which Tate Britain exhibited, "demonstrates art's unique ability to engage with contemporary political issues" and communicates "an unpalatable political truth."