Henan province in central China has taken the drastic measure of putting a mid-sized county in total lockdown as authorities try to fend off a second coronavirus wave in the midst of a push to revive the economy.

Curfew-like measures came into effect on Tuesday in Jia county, near the city of Pingdingshan, with the area’s roughly 600,000 residents told to stay home, according to a notice on the country’s official microblog account.

Special approval was required for all movement outside the home, it said.

After months of restrictions to contain the spread of the coronavirus, China has reported a decline in domestic cases of Covid-19, the disease caused by the virus. On Wednesday, the National Health Commission reported 36 new infections — all but one imported cases.