The Washington Post says China is considering providing Russia with artillery shells.
Citing US government officials, the US paper reported on Friday that China is considering sending Russia lethal military aid in the form of artillery ammunition.
However, it added that there is no evidence that any weapons transfers have occurred.
Meanwhile, CNN quoted multiple sources as saying the United States has intelligence that the Chinese government is considering providing Russia with drones and ammunition for use in the war in Ukraine.
The sources reportedly said Beijing has apparently not yet made a final decision, but that negotiations between Russia and China are ongoing.