Sleuths of the Narcotics Control Bureau seized 27.5 kg of Ephedrine powder meant for export and detained five Malaysian nationals and one Indian at the Anna International Airport here early on Sunday night.

Following a tip-off, a special team intercepted the suspects as they were about to board the aircraft. Their baggage contained the contraband packed in small quantities and concealed in clothes, sources in the agency said.

“We had specific intelligence input that a huge consignment of Ephedrine would be taken to Malaysia. It is used as a party drug in South-East Asian countries. We nabbed them soon after they took the boarding pass and were proceeding towards the aircraft,” NCB South Zonal Director S. Davidson Devasirvatham told The Hindu.

The source of the drug and the supply network is under investigation, he said.

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