JAKARTA, Indonesia – Police announced Monday (April 22nd) the arrest of two suspects in what they describe as Jakarta's largest heroin bust in the last decade, local media reported.

Jakarta Police Chief Putut Eko Bayuseno said the pair, including a Nigerian, was arrested April14th in Depok, West Java, in possession of 4kg of heroin from Nigeria, and that they intended to distribute it locally, according to The Jakarta Post. Police did not identify the other person.

Putut said the heroin was transported by a Nigerian national who flew to Malaysia, then went by boat to Medan, where he flew from Polonia Airport to Jakarta through Soekarno-Hatta Airport.

Kompas.com quoted Putut as saying that the heroin, wrapped in aluminium, made it through to Soekarno-Hatta Airport because not all domestic flights utilise X-ray machines.

Narcotics unit chief Nugroho Aji Widayanto said the sheer quantity of the heroin involved was stunning. "Usually we just seize 1kg. Four kilograms was just an incredible amount."