Chinese firms must cease supplying components that Russia can utilize in weapons used to attack Ukraine, or face consequences, U.S. Deputy Treasury Secretary Wally Adeyemo said.

"My trip confirms that we need to do more” regarding sanctions to stop Russia from getting access to key components, "particularly from China,” Adeyemo said in an interview with Bloomberg Television on Wednesday in Kyiv amid air-raid sirens.

The U.S. and its allies are "open to sanctioning” any company or individual helping Russia to get access to components that can be used for weapons, he added.