A 36-year-old Indian man was arrested in a drug bust in Malaysia's capital Kuala Lumpur, media reported on Friday.
Police seized 19 tonnes of white powder, believed to be ketamine, from a house in Rawang.
Assistant Commisioner R. Munusamy said the house was used as a storage facility for the substance, estimated to be worth at least 290 million Malaysian ringgits ($7.6 million).
"When we arrested the suspect (on Thursday), we found two packets, each containing five kg of white powder," The Star Online quoted Munusamy as saying.
The arrested Indian man was not identified.
"Following the arrest, the suspect led us to a house along Jalan Aman Sierra, Rawang," he said, adding that when they searched the house they found 762 gunny sacks, each containing 25 kg of the same white powder that they found at the time of arrest.
He said police also arrested a 42-year-old businessman at the house.
"We have sent the substance for analysis to verify that it is ketamine. Both men were remanded to help with investigation," he said, adding that the drugs were believed to have been brought in from India.
Munusamy said they were investigating how the syndicate smuggled the drugs to the country.