Speaking to reporters on Tuesday, Brigadier Khalil Vaezi said a drug smuggling gang which intended to transfer a big consignment from Bushehr to other provinces was stopped by police.
During the operation, four cars were stopped and four smugglers were arrested, he added.
He went on to say that 410 kg of opium and 90 kg of hashish were discovered.
Some 6.790 tons of narcotics have been confiscated and 12 distribution gangs also arrested since the beginning of the current Iranian calendar year (on March 21), Vaezi noted.