Why China's stand on Russia and Ukraine is raising concerns

Chinese President Xi Jinping, right, and Russian President Vladimir Putin talk to each other during their meeting in Beijing, China weeks before the Feb. 24, 2022, invasion. [AP Photo]

Nearly one year after Russia invaded Ukraine, new questions are rising over China's potential willingness to offer military aid to Moscow in the increasingly drawn-out conflict.

In an interview that aired Sunday, U.S. Secretary of State Antony Blinken said American intelligence suggests China is considering providing arms and ammunition to Russia, an involvement in the Kremlin's war effort that he said would be a "serious problem."