The White House said on Friday it could not confirm reports that Ukraine had disabled vehicles in a Russian convoy inside Ukraine and warned Moscow that any intervention into Ukraine without Kiev's permission was unacceptable.
“Even as we work to gather information, we reiterate our concern about repeated Russian and Russian-supported incursions into Ukraine,” White House spokeswoman Caitlin Hayden said in a statement.
“Russia has no right to send vehicles, persons, or cargo of any kind into Ukraine, under any pretext, without the government of Ukraine’s permission.”