`` First , we will commemorate the heroes by wiping out those who killed them and then by cleaning our land from the evil . '' Hundreds observe moment of silence in Kiev 's Independence Square . Ukraine has been gripped by protests since November when President Viktor Yanukovych spurned a trade deal with the European Union and turned toward Moscow. World leaders hold telephone talks with Putin , Poroshenko . The government blames insurgents in eastern Ukraine .
Hundreds observe moment of silence in Kiev 's Independence Square . Ukraine has been gripped by protests since November when President Viktor Yanukovych spurned a trade deal with the European Union and turned toward Moscow. World leaders hold telephone talks with Putin , Poroshenko . The government blames insurgents in eastern Ukraine .