The city of Beijing is calling on food importers to avoid frozen food from countries with high levels of COVID-19 outbreaks, according to a statement from the Beijing Municipal Commerce Bureau.
"Customs and local governments have repeatedly detected the coronavirus in imported cold chain food, proving it risks contamination," the agency said in a statement issued to import companies, according to Reuters.
The agency also told food importers to "proactively avoid importing cold chain food from areas heavily hit by the coronavirus" and make alternative plans for imports.
Chinese authorities said they had suspended some seafood imports from two Russian vessels and a Brazilian company after COVID-19 was found in samples.