The prime suspect of the recently busted South Sea drug racket was arrested at the Katunayake Airport.
Police said that he was arrested when he arrived in the country from India.
The suspect is identified as Mohamad Muwas Mohamad from Kalubowila area.
About 110kg of heroin were taken into police custody during a recent raid. A Pakistani national and 10 Iranians were arrested along with three locals.