In a major crackdown on cross-border narcotics smuggling, the Narcotics Control Bureau (NCB) Guwahati Zonal Unit has busted an international drug trafficking network operating along the Myanmar-Manipur-Assam axis and seized 6.149 kg of heroin in a swift riverine operation.

Acting on specific intelligence developed over a prolonged period, NCB officials tracked the movement of an illicit consignment transported through dense forest routes in Manipur and ferried on small motorboats along the Barak River to evade routine security checks, a release said.