Speaking at a press conference here in Selangor, a central state in west coast Peninsula Malaysia, the official said that the suspects included three Iranian males, two Zimbabwean females and a Nigerian male.
Once convicted, they could be sentenced to death under the Malaysian law, said the official.
According to the police, this is the first time that suspected drug traders from Zimbabwe were held in Malaysia.
Syabu of 11.4 kilograms worth 2.8 million ringgit (909,000 U.S. dollars) were seized from the drug mules, said the official.
He also said that the suspects not only hid the drugs in the inner layer of their luggage, but also in the oil filters of vehicles and rollers of escalators.
The two Iranian men were believed to come from the same syndicate as the way they had carried the drugs were similar, said the official.