The investigation of a cluster of COVID-19 cases in Beijing associated with a wholesale market continues. As of 18 June, 10AM CEST, Chinese authorities have reported a total of 172 cases since 11 June, including 158 in Beijing, 10 linked cases in Hebei Province, 2 in Liaoning Province, 1 in Sichuan Province and 1 in Zhejiang Province. Three genetic sequences related to Xinfadi cluster have been uploaded to the GISAID database. WHO is closely monitoring the situation and is in close contact with national authorities in China.