KUALA LUMPUR, Feb. 8 -- Police have detained four individuals, including three foreigners, and seized various drugs concealed in helium tanks following two special operations on Jalan Tun Razak yesterday.

In a statement, Kuala Lumpur police chief Datuk Fadil Marsus said the first raid by the KL Police Strike Force took place around 5.30pm at a residence based on intelligence reports.

The operation led to the arrest of two men from China and Hong Kong, and a Chinese woman aged between 26 and 36 suspected of distributing drugs in the city.

"Checks recovered five helium-labelled tanks suspected to contain MDMA, three plastic packets of MDMA powder, and four cartridges suspected to contain methamphetamine. Urine tests on the three suspects...