Indonesia has been grappling with a spike in coronavirus cases this month and reported 14,536 new infections on Monday, taking its total to 2,004,445, among the highest case numbers in Asia.

It also recorded 294 new deaths, taking total fatalities to 54,956.

The tighter regulations will apply for two weeks in 29 "red zones" nationwide where infection rates are high, with religious activities at houses of worship suspended and restaurants, cafes and malls required to operate at 25 per cent capacity, Co-ordinating Economic Minister Airlangga Hartarto said.

Those areas include Kudus in Java, Bangkalan on Madura island and parts of Riau, in Sumatra, and the capital Jakarta, where police announced a curfew in 10 locations between 9 pm and 4 am

Vital sectors such as basic services can operate at normal capacity with stricter health protocols, while offices outside of red zone areas must operate at under 50 per cent capacity.

"It was reported to the president that there are 87 regencies and cities where hospital capacity is above 70 per cent," Airlangga told a news conference, explaining the reason for the curbs.

The World Health Organisation last week urged Indonesia to tighten restrictions amid increased transmission and a surge in hospital occupancy rates.

Public health experts say widespread travel during the Muslim Eid al-Fitr holiday period and the circulation of the more transmissible delta variant are likely driving the surge.

Australian Associated Press