The OSCE will hold an extraordinary meeting of permanent representatives on Monday to find ways to de-escalate the situation in Ukraine, the Polish chairmanship of the European security body said. “The meeting has been called for Monday,” Deputy Foreign Minister Pawel Jablonski told PAP on Sunday, following a request from Kyiv amid a sharp escalation in the conflict in eastern Ukraine. Organization for Security and Co-operation in Europe (OSCE) monitors have reported hundreds of artillery and mortar attacks in recent days, in a conflict that has rumbled since 2014 and claimed more than 14,000 …