BERLIN- Germany's defense ministry said on Friday it was unable to contact a German-led group of international military observers on a mission in the rebel-held city of Slaviansk in eastern Ukraine.



The group, on a mission overseen by the Vienna-based Organization for Security and Cooperation in Europe (OSCE), is made up of three German soldiers, a German translator, and military observers from Czech Republic, Poland, Sweden and Denmark, a ministry spokesman said.



"At the moment we cannot contact them. The reason why is unclear," he said, adding it could be down to poor telephone coverage or reception.