The European Union's foreign policy chief urged President Vladimir Putin to adopt a "radical change in attitude" and begin cooperating as EU leaders gathered to map out a long-term strategy for dealing with an economically wounded Russia, Reuters reported. Federica Mogherini said the financial crisis hitting Moscow as a result of falling oil prices and Western sanctions was "not good news" and was adding to dangerous global instability. She spoke as she arrived on Thursday at an EU summit in Brussels. "President Putin and the Russian leadership should reflect seriously about the need for introducing a radical change in attitude towards the rest of the world and to switch to a cooperative mode," she said after Putin defended the actions in Ukraine this year that some fear presage a new Cold War. -- SPA 20:48 LOCAL TIME 17:48 GMT تغريد