Singapore recorded 799 new cases of coronavirus in the 24 hours before noon local time on Monday, according to a statement by the country’s Ministry of Health.

Among the new cases, 14 are Singaporeans or permanent residents, while the vast majority are work permit holders in foreign worker dormitories.

In recent weeks, the Asian city-state has recorded a dramatic spike in coronavirus infections, with thousands of new cases linked to clusters in foreign worker dormitories. To control the spread, the government has attempted to isolate the dormitories, test workers and move symptomatic patients into quarantine facilities.

Singapore has recorded more than 13,000 coronavirus cases — the highest in Southeast Asia — and at least 12 deaths, according to Johns Hopkins University.