BERLIN (Reuters) - The West should impose tougher sanctions on Russia, which is waging a "hidden war" in eastern Ukraine, Ukraine's acting Foreign Minister Andriy Deshchytsia said in an interview with German newspaper Die Welt.
The United States and the European Union have already imposed several rounds of sanctions on Russian individuals and some companies, accusing Russian President Vladimir Putin of stoking the eastern rebellions, a charge Putin has denied.
