SINGAPORE - More than $177,000 worth of drugs have been seized in multiple operations by the Central Narcotics Board (CNB) this week.

The drug haul comprised more than 1.5kg of heroin, 329g of 'Ice', 80g of cannabis, 153 ecstasy tablets, 26 Erimin-5 tablets and ketamine.

Some 103 suspected drug offenders were also arrested in one four-day operation, which started on Monday and ended on Friday (April 15).

This operation was supported by officers from the Singapore Police Force, and spanned areas including Tampines, Toa Payoh, Ang Mo Kio, Clementi, Punggol, Sembawang, Woodlands and Yishun.

In one of the the cases during the four-day operation, 570g of heroin worth over $40,000 and more than $2,000 in cash were seized by officers.

The first arrest in this case was made on Wednesday in the vicinity of Upper Boon Keng Road, where a 52-year-old Singaporean man was caught with Erimin-5 tablets and drug paraphernalia.

Nearby, officers noticed a 60-year-old Singaporean man behaving suspiciously, and seized over 80g of heroin, seven Erimin-5 tablets and cash from him. Follow-up investigations led to the capture of a 28-year-old Malaysian man the next day, who was found with 450g of heroin in the vicinity of Somerset and is believed to have been a supplier.

The CNB is continuing its investigations into all of the suspects.

It reminded the public that the Misuse of Drugs Act allows for the death penalty if the amount of diamorphine (or pure heroin) trafficked exceeds 15g.