Ukraine and Belarus: Uneasy Borders

Attempts at diplomacy are continuing in an effort to alleviate the crisis over Ukraine, with the US and Russia sparring at the UN Security Council. But while the focus has been on the Donbas region in the East, another front is potentially building up on Ukraine's northern border with Belarus. Russia has deployed tanks, jets, troops and artillery for what it says are military exercises, but as Gabriel Gatehouse reports, there are fears the proximity to Ukraine's capital, Kyiv, could now be under threat.