SINGAPORE — All residents of a housing block in Tiong Bahru will have to go for a mandatory swab test after 13 Covid-19 cases were detected in three households there, the Ministry of Health (MOH) said on Friday (June 25).

Mandatory testing will be conducted for those living at Block 66 Eng Watt Street, at the pavilion of 2D Boon Tiong Road on June 26 and 27 between 9am and 4pm.

Testing is optional for those who have tested negative for Covid-19 from June 22 onwards.

MOH will also conduct voluntary testing for visitors and those who have interacted with residents of the block between June 8 and 22.

Epidemiological investigations are ongoing to determine linkages and the source of transmission.

The voluntary testing will be done by appointment only at designated regional screening centres on June 26 and 27 between 9am and 4pm.

Those who want to book an appointment or get information on the alternate test locations may visit https://go.gov.sg/66-ew-covid-19-testing or call 1800 333 9999.

All residents are to take along their national registration identity cards for identification purposes.

"Residents are also advised to monitor their health closely and consult a doctor immediately if they feel unwell," MOH said.

"Those who are still awaiting their test results are advised to minimise social interactions as much as possible."