BEIJING — Officials in the northwestern China region of Xinjiang say they believe they have contained the country’s latest coronavirus outbreak.

Xinjiang reported 23 new confirmed cases Thursday, all involving people who had initially tested positive but displayed no symptoms. It was the second consecutive day in which newly confirmed cases emerged entirely among such people.

Officials say that development appears to show new infections have been curbed in Kashgar prefecture, where the outbreak appeared Saturday. They say all the cases seem to be linked to a garment factory that employs 252 people and has since being sealed off.

More than 4.7 million people in Kashgar have been tested for the virus.