CIA director says he warned Russian counterpart against using nuclear weapons in Ukraine

CIA director William Burns said he promised Russia's spy chief Sergei Naryshkin severe consequences from the United States if Moscow uses nuclear weapons on the Ukrainian battlefield.

"It was more than anything else, what the President asked me to do, which was to make clear to Naryshkin and through him to President Putin, the serious consequences should Russia ever choose to use a nuclear weapon of any kind as well," he said. "And I think Naryshkin understood the seriousness of that issue and I think President Putin has understood it as well. I think it's also been very valuable that the Chinese leadership, that Prime Minister Modi in India have also made clear their opposition to any use of nuclear weapons." Danielle Wallace is a reporter for Fox News Digital covering politics, crime, police and more. Story tips can be sent to danielle.wallace@fox.com and on Twitter: @danimwallace. 

CBS host Margaret Brennan asked, "And you made clear to him that a nuclear weapon of any kind, a tactical nuke on the battlefield, would be treated by the United States with the utmost severity?"