President Biden met with his national security team Saturday amid reports that Russia was planning to install a pro-Kremlin leader in Ukraine.

One U.S. official told Fox News the reports were “deeply concerning.”

Late Saturday, the White House posted a photo on social media, showing Biden and advisers at Camp David, Maryland, where they gathered to discuss “continued Russian aggressive actions toward Ukraine.”

The president “affirmed that if Russia further invades Ukraine, the United States will impose swift and severe consequences on Russia with our Allies and partners,” the White House post said.