Hong Kong police have made their biggest ever cocaine bust, seizing more than 1,200lb (560kg) of the drug with an estimated street value of about 600 million Hong Kong dollars (£48.7 million) and arresting eight people.
Narcotics bureau officers acting on a tip-off carried out raids at a suburban warehouse and other locations across the city starting on Friday, police said today.
The five men and three women arrested included five Mexican nationals, an American and a Colombian.
The Mexicans and the American were charged with drug trafficking and appeared in court today. They did not enter pleas or apply for bail and the case was adjourned until November 14, local broadcaster RTHK said.
News reports said the other two arrested were a Colombian woman and her Chinese husband, both Hong Kong residents.
Police said the warehouse was believed to be a drug packaging and storage centre. Police said the drugs were hidden in heaps of plastic engine oil or automotive transmission fluid containers for recycling, according to local newspapers.
"Traffickers have used different ways to disguise their dealings, but this is the first time police have seen recycled materials used," Narcotics Bureau Chief Superintendent John Paul Ribeiro said, according to the South China Morning Post.
Police said it may take more than 100 officers up to two more days to finish searching the 10,000 square foot (930 square metre) warehouse, the Hong Kong Standard reported.
Mr Ribeiro said the suspects had been in touch with local dealers but would not rule out the possibility that the drugs were destined for mainland China or other countries, the Post reported.
Drug trafficking carries a maximum penalty of life imprisonment and a fine of 5 million Hong Kong dollars (£406,000) in Hong Kong.
The seizure tops last year's haul of 820lb (372kg) of cocaine from a suburban house.