Ukrainian President Petro Poroshenko has put the army on combat alert along the border with Crimea and the line of contact with Russia in the east. This follows Russian accusations of Ukrainian incursions in Crimea.
Deutsche Welle: Ukraine puts army on combat alert along border with Crimea
Anti-aircraft gunners of Ukrainian forces take part in exercises not far from southeastern city of Mariupol, Donetsk region on July 7, 2015.
