The heroin was seized during a search in a vehicle in Bitlis province, the Provincial Police Department said in a statement.
Three suspects, identified by initials M.Ö., A.D, and İ.A., were remanded in custody after being arrested at the scene by anti-drug police.
Turkey maintains strict laws against the use, possession, or trafficking of illegal drugs. If convicted under these offenses, one could receive a heavy fine or a prison sentence of 4 to 24 years.