KABUL, June 14 (Xinhuanet) -- Afghan law enforcing agencies in a major anti-drug operation in southern Helmand province have seized four tons of heroin and arrested seven smugglers, a state-run newspaper reports Tuesday.

    "Personnel of National Security Directorate in an operation against drug traffickers in Khanshin district of Helmand province busted a gang and seized 4,000 kg heroin from their possession yesterday," daily Anis added.

    One of smugglers, the daily added, was injured during the exchange of fire.

    A quantity of arms including a rocket propelled grenade and twovehicles were also seized form the band.

    It is the second major operation in the province against the smugglers.

    Personnel of Afghan Counter Narcotics Force in a three-day operation early this month destroyed a drug bazaar in Bahram Shah area close to Pakistan border. Enditem