TEHRAN, Iran—Iran's state TV says the country's border police have confiscated over 11 tons of narcotics after fierce clashes with drug traffickers in southeastern Iran, the biggest single consignment ever seized in Iran's war against drugs.

It quoted provincial border police chief, Gen. Qolam Nabi Kouhkan, as saying Saturday that the various narcotics were seized from traffickers Friday night.

One of the drug traffickers was killed and several others injured in the armed clashes that took place on Iran's border with Pakistan.

Kouhkan said the operation was helped by tips from locals, and that traffickers had carried the drugs on camels from Pakistan.

Iran lies on a major drug route between Afghanistan and Europe, as well as the Persian Gulf states, where the confiscation of large amounts of narcotics is common.