PHNOM PENH, Apr 20 (AP) -- Hong Kong action film star Jackie Chan will visit land mine victims in Cambodia and tour former battlefields to learn about the suffering caused by the deadly explosives, the U.N. children's agency said Wednesday.

Chan, a U.N. goodwill ambassador, was to arrive in northwestern Battambang late Wednesday, said Mark Thomas, a UNICEF spokesman.

He will meet recovering land mine victims at a Battambang hospital and visit a land mine education project in nearby Pailin -- a former stronghold of the late 1970s genocidal Khmer Rouge regime.

Chan also will watch de-miners clear explosives and will detonate unexploded ordnance.

During a 2004 visit to promote awareness about HIV/AIDS issues for UNICEF, Chan was introduced to demining activities in Siem Reap province, Cambodia's main tourist destination, and met with children who became amputees because of land mines.

Chan later said the visit caused him to dream about digging land mines for a week.

"He was very moved by what happened to them and wanted to come back," Thomas said.

Cambodia is one of the most heavily mined countries in the world.

Areas around Battambang and Pailin were sites of heavy fighting during the civil war, which ended with the Khmer Rouge collapse in 1999. Farmland there is still sown with land mines left over from the war.

Nearly 4,200 Cambodians were killed or injured by land mines and unexploded ordnance between 2000 and 2004, with 25 percent of the victims under the age of 18, UNICEF said.

Chan has starred in Hollywood hits such as "Rush Hour," "Rumble in the Bronx" and "Shanghai Noon." He has said he might shoot a movie in Cambodia.