An international drug-trafficking channel active in the southern and eastern China has been busted following a crackdown on a drug gang headed by a Taiwan resident.

The gang smuggled methamphetamine, known as "ice", and ketamine, or K-powder, produced in Guangdong, by air and ship to the Hong Kong special administrative region, Taiwan, Southeast Asian nations and the rest of the world via the channel.

"Police seized 1.39 tons of liquid ketamine, 24.6 kilograms of finished ketamine and 3 tons of supplementary materials," Wu Bohui, deputy director of the drug enforcement detachment of the Yangjiang bureau of public security, told a news conference in Guangdong province on Thursday.