“It could have been stopped in China before it started and it wasn’t, and the whole world is suffering because of it,” Trump told a daily White House briefing.

It was the latest U.S. volley in a war of words between the world’s two biggest economies, showing increased strains in relations at a time when experts say an unprecedented level of cooperation is needed to deal with the coronavirus crisis.

“If it was a mistake, a mistake is a mistake. But if they were knowingly responsible, yeah, I mean, then sure there should be consequences,” Trump said. He did not elaborate on what actions the United States might take.