A suspect has been arrested for the possession of 40kg of heroin in a raid carried out in Renukana, Bandaragama this morning.
Police said the stock of narcotics has been valued at more than Rs.400 million.
Investigations following the arrest of the suspect revealed the drug racket was operated by an individual who fled Sri Lanka and is currently residing in Dubai.
Police said Kalutara District Crime Division conducted the investigations based on a tip-off.
Police said joint investigations will be carried out by the Kalutara District Crime Division and the Police Narcotic Bureau.