PHNOM PENH, June 26, 2016 (Xinhua) -- Cambodian police officers stand guard as drugs are burned down in Phnom Penh, Cambodia, June 26, 2016. The Cambodian authorities on Sunday ceremonially burned down about 1.56 tons of marijuana, methamphetamine and heroin, which were seized from criminals last year, anti-drug chief said. The drug destruction ceremony was held here to mark the International Day against Drug Abuse and Illicit Trafficking, which has been observed globally on June 26 since 1987. (Xinhua/Sovannara)