ISTANBUL, July 26 (Reuter) Police have seized 70 kg of pure heroin hidden in a lorry in southeast Turkey, staterun Anatolian news agency said on Saturday. Police found the haul after searching the truck at a roadblock in the province of Van. The heroin, with a market value of $7.5 million had been smuggled from Pakistan through Iran, the agency said. One man was arrested in connection with the find, it said. Turkey lies on the Balkan route of the drugs trade used to supply the West with drugs from Asia and the Middle East. 06:23 072697