The US says China is considering supplying weapons and ammunition to Russia for its war in Ukraine.
China has refused to condem Russia's invasion of Ukraine and in the last year has deepend its ties with the country.
Secretary of State Antony Blinken says it's a concern Antony Blinken is in Munich for the international security conference and met with China's top diplomat,
Wang Yi He says he warned Mr Wang of consequences if material support was provided to Moscow.
Washington correspondet Simon Marks spoke to Guyon Espiner.
