What is the sentiment of this news? Please choose an answer from {strong negative/moderately negative/mildly negative/neutral/mildly positive/moderately positive/strong positive}.

US stocks started the week on a lower note on concerns that China could resume stricter restrictions to fight the covid-19 pandemic. Beijing has warned it was facing its most severe test of COVID as it tightened rules for entering the city, reported Reuters.
mildly negative