Tension in Ukraine despite peace deal hopes
4 September 2014 Last updated at 23:02 BST
Fighting is continuing in eastern Ukraine, despite suggestions from Ukrainian President Petro Poroshenko that a truce deal could be struck with Russia.
Talks on a ceasefire including Ukraine, Russia and pro-Russia rebels are set to begin at lunchtime in Belarus.
Fergal Keane reports on the tension outside Mariupol, where Ukrainian soldiers are still trying to repel advancing rebels.