Drug was found in Hong Kong-bound boxes searched by customs officials at Suvarnabhumi airport.
Customs Department officials say they have found more than 43 kilogrammes of heroin worth 107.5 million baht hidden in packages containing hilltribe garments bound for Hong Kong.
The discovery was made on Monday at Suvarnabhumi airport by officials who were suspicious about 29 boxes destined for Hong Kong, Patchara Anultasilp, director-general of the Customs Department, said on Tuesday.
The boxes were declared to contain home appliances, garments, cosmetics and hair removal devices.
Officials initially checked six boxes of the shipment and found hilltribe-style shirts and waist ties. The sleeves of the shirts looked unusually thick and gave off a strong smell, so officials decided to tear the garments.
Inside the sleeves and waist ties, officials found fabric packs containing heroin. After all the clothes were examined, the total amount of drugs found was 43.4kg of heroin worth 107.5 million baht, Mr Patchara said.