Singapore on Tuesday recorded 157 new coronavirus cases, including 137 among foreign workers living dormitories, taking the country's total count to 45,140.
The Ministry of Health (MoH) said that three imported cases were placed on stay-home notices upon arrival in Singapore.
There are 12 Singaporeans (citizens) or permanent residents (foreigners) and eight foreigners work pass holders among the new community cases.
"From our preliminary investigations, of these 20 cases, 12 were close contacts of earlier cases and had already been placed on quarantine. Epidemiological investigations are ongoing for the other cases," said the ministry.
The ministry also provided the list of locations visited by the COVID-19 patients. Those who were at these places should monitor their health closely for two weeks from the date of their visit.
The MoH has said that close contacts have already been notified and that there was no need to avoid these places as they would be cleaned.
Infections in the community have increased, with 23 new cases announced on Monday.
As of Monday, 276 more patients were discharged from hospitals or community isolation facilities. In all, 40,717 have fully recovered from the infection, said the MoH.