The US hit a grim COVID-19 milestone Monday – with more than 1 million cases diagnosed as the highly contagious Omicron variant rages across the country.

A total of 1,082,549 COVID-19 cases were tallied Monday, a record high for the US since the pandemic began, according to data compiled by Johns Hopkins University.

The startling figure is the largest single-day tally of any nation ever reported and nearly double the previous US record of 590,000 cases set just four days ago, Bloomberg News reported.