Washington, March 14 -- US National Security Advisor Mike Waltz said he has some "cautious optimism" about the Ukraine settlement.

"I'm not going to announce or negotiate anything on national television, certainly not ahead of the President, but we do have some cautious optimism," Waltz told Fox News.

Russian newspaper Izvestia reported, citing Kremlin aide Yury Ushakov, that Russian President Vladimir Putin was expected to meet with US President Donald Trump's special envoy for the Middle East, Steve Witkoff, on Thursday evening in a closed format.

Overnight to Friday, Witkoff's plane left Russia, according to Flightradar data.

On Tuesday, a meeting between the US and Ukrainian delegations took place in Jeddah, Saudi Arabia. Ukrainian ...