Health officials say at least seven people killed and 39 more injured in clashes in Mariupol . Ukraine 's acting interior minister says about 20 militants killed , 4 detained in Mariupol . `` We will overcome all the difficulties , '' says Russian President Vladimir Putin . Less than two months after Crimea was wrested from Ukraine 's grasp , there are fears that other parts of the country could go the same way . Score: 6
Health officials say at least seven people killed and 39 more injured in clashes in Mariupol . Ukraine 's acting interior minister says about 20 militants killed , 4 detained in Mariupol . `` We will overcome all the difficulties , '' says Russian President Vladimir Putin . Score: 6