A police raid at a boutique hotel in the Jalan Besar region saw the arrest of 24 persons for prostitution-related activities.
Among those arrested were 23 women and one transgender whose identity card still listed him as a man.
All of them were foreigners, mainly from Thailand, and held valid work permits.
The 6-hour raid, which saw anti-vice officers raid around 70 rooms in the hotel, took place last night and lasted till about 6.30am today.
Investigations showed the alleged prostitutes advertised their services on several websites.
Persons interested in hiring them for sex would call a mobile number to get in touch
This latest raid comes after a raid on residences in Orchard Boulevard, Cairnhill and Tanjong Katong led to the arrest of 3 Russian and 1 Uzbek women for prostitution-related activities.
The women are suspected to be high-class prostitutes offering “exclusive” services and servicing a group of rich clientele.
One of the Russian women arrested is suspected of being the pimp of the group.
She has since been charged in court and is awaiting trial.