As of 30 May 2020, 12pm, the Ministry of Health (MOH) has preliminarily confirmed an additional 506 cases of COVID-19 infection in Singapore, the vast majority of whom are Work Permit holders residing in foreign worker dormitories. Based on our investigations so far, there are five cases in the community, of whom two are Singaporeans/Permanent Residents and three are Work Pass holders.
https://www.moh.gov.sg/news-highlights/details/506-new-cases-of-covid-19-infection