Police uncovered a drug processing laboratory hidden in a massage parlour in Lorong Madras, here last night.
Following intelligence reports and a raid carried out on another illegal drug laboratory in Alma, Bukit Mertajam yesterday afternoon, an operation codenamed 'Ops Cantas Khas' was carried out at 11.30pm by a police team from the Bukit Aman Narcotics Crime Investigation Department and the state contingent police headquarters.
Three men aged between 20 and 40, who were believed to be engrossed in processing the drug, heroin, were detained in the premises.
It is learnt that the arrest led to the discovery of the biggest drug processing laboratory in the state.
State Police Chief Datuk Abdul Rahim Hanafi, when approached by reporters at the scene of the incident, said a press conference on the discovery would be held later in the afternoon.