Home Team agencies intercepted another major shipment of drugs, after a Malaysian was nabbed with 1.4kg of heroin at Tuas Checkpoint on Thursday.
Immigration & Checkpoints Authority officers checked the 28-year-old male suspect and found a black bundle hidden below the headlight of his motorcycle.
Officers from the Central Narcotics Bureau (CNB), were then called in as the bundle was believed to contain controlled drugs.
The CNB officers later found four more black bundles hidden below the right and left fairings of the motorcycle. In all, the bundles contained about 1.4kg of heroin.
In a follow-up operation later that same day, CNB officers, later also arrested two local drug traffickers suspected to be responsible for the consignment and seized a further small amount of heroin and "Ice".
The two male Singaporeans, aged 47 and 64 respectively, were in a Singapore-registered car in the vicinity of Woodlands Street 32.
They were found with 85 straws of heroin weighing about 115 grammes, a small packet of 'Ice', drug paraphernalia, more than $5,000 cash, and two flick knives were recovered from the car.
The operation continued till the early hours of Friday, with one more packet of heroin weighing about 8 grammes found in another car in the same vicinity. The two flick knives were referred to Police for further investigation.
Police K9 unit was also deployed to search the three vehicles.
In all, the two related operations saw a total seizure of about 1.5kg of heroin and 0.4g of 'Ice' with an estimated street value of approximately $160,000.
The 47-year-old and 64-year-old Singaporeans are being investigated for drug trafficking while the 28-year-old Malaysian is being investigated for drug importation.
If convicted, they may face the death penalty under the Misuse of Drugs Act.
CNB director Ng Ser Song said, "Together with the Home Team agencies, we will continue to work relentlessly to stamp out these illicit drug activities at the checkpoints."