- NATO's chief said Wednesday that there are "some signs" China may send lethal aid to Russia.
- The US has repeatedly threatened "serious consequences" if China further involves itself in the war.
- US official believes Russia is "running out of munitions and has lost as much as 50% of its tanks."
NATO's chief said Wednesday that the alliance has seen "some signs" that China plans to send lethal aid to Russia and joined the US in urging Beijing against getting further involved in the war in Ukraine.