NAIROBI, KENYA: Security officers in Mombasa have intercepted another huge consignment of illicit drug heroin in what has shocked anti-narcotics officers operating in the area.

Coast anti-narcotics boss  Hamis Masha said the consignment weighing 341.7 kilogrammes of the drug with an estimated street value of Sh 1.1 billion was intercepted after days of searching a vessel christened MV Bushehr Amin Darya which was stateless.

Investigators are trying to piece together evidence on the destination of the consignment discovered Tuesday afternoon from he ship that docked at the Port of Mombasa.

Last week two suspects were arrested in a related heroin incident after they were allegedly found with a package of one kilogramme.

It is reported that on further search on the ship, investigators stumbled on the 341.7 kilogrammes.

The Kenyan coast line and adjacent waters have been in the news in recent weeks after Australian authorities arrested a major drug haul off the boundaries of Kenya was intercepted by Australian authorities.