Chengdu has extended a Covid-19 lockdown in most areas, hoping to stem the spread of the virus.

The provincial capital of Sichuan had been under lockdown in the past week, and the measure was expected to be lifted on Wednesday.

But officials said the virus still posed a risk in some areas. In a notice, the city government said the city will continue to work towards zero community spread.

A handful of districts were released from full lockdown. Residents there still have to undergo mass testing on Friday and Sunday.

All residents under lockdown will be tested every day, and each household will be permitted to send out one person per day to purchase groceries and other supplies. (Agencies)