Singapore's Prime Minister Lee Hsien Loong said on Tuesday that partial lockdown measures to stem the spread of the coronavirus in the country will be extended by four weeks to June 1.

Some of those measures, which the Singapore leader calls a "circuit breaker," involve shutting schools and most workplaces temporarily. Those measures, which were implemented two weeks ago, were initially supposed to end on May 4.

To help businesses cope with the extended period of the partial lockdown, the government will extend some stimulus measures into the month of May, said Deputy Prime Minister Heng Swee Keat. That includes wage subsidies and rebates in foreign worker levies, he said.

Those measures would cost an additional 3.8 billion Singapore dollars ($2.7 billion), said Heng.