This is reported by the NBC channel, citing four American officials.
It is noted that Chinese supplies to Russia may include equipment, military uniforms and bulletproof vests.
“We have made clear our concerns about lethal assistance.
We have not yet seen China cross this line, but we do not think that Beijing has removed it from the agenda, ”the message says.
According to one US official, China is trying to "sneak up to the front lines without getting caught."
Earlier, US Secretary of State Anthony Blinken warned Wang Yi, head of the Office of the Foreign Affairs Commission of the CPC Central Committee, about the consequences if China assists Russia in the conflict in Ukraine.
The PRC also spoke about the preparation of a document with a position on the settlement of the Ukrainian conflict.