The Red Cross is warning of a worst-case scenario for hundreds of thousands of civilians in the besieged Ukrainian city of Mariupol unless the parties agree to ensure their safety and access to humanitarian aid.
Get latest articles and stories on World at LatestLY. White House national security adviser Jake Sullivan says Russia will face a response from NATO should any of its attacks in Ukraine cross borders and hit members of the security alliance. World News | Live Updates: US: NATO Will Act if Russia Hits Alliance.