Police seized 3,340 kilos of opium and arrested several suspects in Sistan-Baluchistan, a province in southeastern Iran, the official IRNA news agency reported Sunday.
The seizure was made on Saturday night and it is not known how many people were arrested, the news agency said, citing Hamid Fahimirad, who is the commander of the police force in Sistan-Baluchistan, a province that borders Pakistan and Afghanistan.
Afghanistan is the world's largest producer of white poppies, which is used to make opium, morphine and heroin.
Traffickers move the illegal drugs across Iran and eventually smuggle them into Europe, the Arab countries of the Persian Gulf and the former Soviet republics.
Iran, which U.N. figures show accounts for 89 percent of the opium and 41 percent of the heroin and morphine seized in the world, has 1.2 million drug addicts.
Some 70 percent of the 22,000 confirmed AIDS cases in Iran involve intravenous drug users, official figures show. EFE