Ukraine conflict: 'People panicking'
21 July 2014 Last updated at 12:48 BST
Heavy fighting has been reported in the main pro-Russia rebel-held city of Donetsk in eastern Ukraine.
The BBC's special correspondent Fergal Keane said there appeared to be military action at the city's airport and at the railway station.
"People are panicking, they're afraid", he said. "We've been watching them run past us all morning."