Police Chief of Sistan and Balouchestan province Colonel Mohammad Reza Nasiri said on Tuesday that the consignment was intended to be transferred into Iran from Iranshahr and Saravan countries of the province which share border with Pakistan.
Colonel Nasiri added that drug traffickers were trying to transfer a significant amount of drugs in two Peugeot cars from border areas to central provinces when counter-drug trafficking police forces took action to seize their consignment.
He further said that during the operation, two of the traffickers were arrested, and 1.4ton of opium, 206kg of hashish, 14kg of heroin, and 24kg of other kinds of illicit drugs, as well as an AK 47 rifle with some ammunition were confiscated.
He further said that the Iranian law enforcement forces will continue to counter all those who seek to endanger the security of the province.
Iran is in the forefront of the fight against drug trafficking and thousands of Iranian police forces have been so far martyred to protect the world from the danger of drugs.
On December 5, Iran's Coast Guard forces confiscated a 1.2 ton haul of narcotics in the Southern Province of Bushehr in the Persian Gulf, arresting a suspect in the operation.
Earlier in November, the coast guards seized an opium haul of 960 kg in Genaveh Port, located near Kharg Island in the Persian Gulf.
The Iranian anti-narcotic police have always staged periodic, but short-term, operations against drug traffickers and dealers, but the latest reports - which among others indicate an improved and systematic dissemination of information - reveal that the world's most forefront and dedicated anti-narcotic force (as UN drug-campaign assessments put it) has embarked on a long-term countrywide plan to crack down on the drug trade since 8 years ago.
The Iranian police officials maintain that drug production in Afghanistan has undergone a 40-fold increase since the US-led invasion of the country in 2001.
Afghan and western officials blame Washington and NATO for the change, saying that allies have "overlooked" the drug problem since invading the country more than 16 years ago.