The Customs Department has seized 82kg of ketamine worth some RM5mil hidden in the door frames of six containers shipped in from Karachi, Pakistan.

Its deputy director-general Datuk Abdul Latiff Abdul Kadir told reporters on Monday that one local man and three foreigners were detained during the raid and tracking down two Pakistanis, Muhammad Fasih Khan, 27, and Muhammad Bilal Malik, 29, to assist in the probe.