Turkish security forces say one suspect is also arrested during the operation.
Turkish security forces on Friday seized over 70 kilograms of heroin in the eastern Van province, according to the local gendarmerie command.
Acting on a tip, the gendarmerie seized 71.15 kg (157 pounds) of heroin in four bags from a vehicle in the Baskale district, the command said in a statement.
One suspect was arrested during the operation, it added.
According to UN data, the heroin would have had a value of more than $4,000,000 (2016 prices) in Europe.