State Department Spokesperson Matthew Miller said this during a press briefing on Thursday, September 28, according to an Ukrinform correspondent.
"We've seen no diversion of those arms at this point," Miller said.
He noted that the United States has important accountability mechanisms in place for the supply of U.S. arms and military assistance to Ukraine.
"We have strict oversight mechanisms that we've put in place. That also applies to humanitarian and economic aid that we’ve provided," Miller said.