BEIJING (AP) — A third Chinese city has locked down its residents because of a COVID-19 outbreak, raising the number confined to their homes in China to about 20 million people. The lockdown of Anyang, home to 5.5 million people, was announced late Monday after two cases of the omicron variant were reported. The semiautonomous Chinese city has tightened pandemic-related restrictions in recent days after discovering the omicron variant had spread beyond people arriving from overseas. The Anyang omicron cases are believed to be linked to two other cases found Saturday in Tianjin. The city reported 13 new cases in the latest 24 hour period, down from more than a hundred a day at the peak of the outbreak.