What it looks like on the ground in Kyiv after US embassy temporarily closed

 The US embassy in Kyiv was temporarily closed after the embassy said it received “specific information of a potential significant air attack,” according to an advisory issued on its website.

But the closure also a sign of the escalating tensions between Russia and the United States, CNN correspondent Nick Paton Walsh reported, standing outside the embassy on Tuesday. It comes after Ukraine has started using US-made ballistic missiles to hit targets deep inside Russia.