Customs officers yesterday arrested two men at the airport after finding about 2.8 kg of heroin worth $2.1 million packed around their legs.

Officers stopped the men as they were preparing to depart for Sydney, and found and seized the drugs.

The pair, aged 32 and 25, claimed to be a worker and a technician.

They were charged with trafficking in a dangerous drug and will appear in Tsuen Wan Magistrates' Court tomorrow.