Petr David Josek/AP
- China may try to send lethal aid to Russia "without getting caught," a source told NBC News.
- Warnings of escalation come on the heels of Secretary of State Anthony Blinken's meeting with China.
- Blinken warned "about the implications" of sending lethal aid, the State Department said.
US officials are expressing concerns that China won't toe the line and will end up sending lethal aid to support Russia's war against Ukraine.
Secretary of State Antony Blinken met with China's top diplomat, Wang Yi, on Saturday in the midst of the Munich Security Conference, to reiterate warnings the Biden administration has sent to Beijing since the outset of the war.