URUMQI -- Urumqi, capital of Northwest China's Xinjiang Uygur autonomous region, on Wednesday started a new round of nucleic acid tests for residents in key residential communities to ensure their health and safety, local authorities said.

Urumqi will then further adjust their epidemic prevention and control measures and gradually restore the normal work and life order, deputy director of the regional publicity department Wang Wulong told a press conference Wednesday.

Through hard work, the epidemic prevention and control situation in Urumqi has expanded to a positive trend, Wang added.

On July 15, Urumqi confirmed one new COVID-19 case. The city then applied lockdown measures in its residential communities and villages, and carried out free nucleic acid tests for all residents.

By Tuesday midnight, Xinjiang had 124 confirmed COVID-19 cases and 44 asymptomatic cases, with 3,024 people still under medical observation. No newly confirmed COVID-19 cases have been reported in Xinjiang since Aug 16.