Hanoi suspends outdoor sports amid coronavirus fears

That means only indoor food and beverage facilities are allowed to operate in the capital starting 6 p.m. The document also called for people to only go out for necessary purposes, while still abiding by coronavirus control measures like wearing masks.

The city just reopened outdoor activities including golf on June 25 with the local outbreak under control at the time.

Authorities have already erected Covid-19 checkpoints in areas vulnerable to infections, including industrial parks, markets, malls, parks and other public locations.

"There is no room for complacency," said chairman of the municipal People's Committee Chu Xuan Dung, who issued the document.

Just this week alone, Hanoi has observed 18 new local coronavirus cases from multiple clusters, including the Thang Long industrial park in Dong Anh District, which employs thousands of workers.

The capital has confirmed 484 local Covid-19 cases in Vietnam's fourth coronavirus wave since late April, including 148 contained within its locked down hospitals.