An armed pro-Russian militiaman from the Vostok (East) Batallion looks at items that, according to him, were looted by other separatist groups and stored in the Donetsk regional administration building May 29, 2014. Pro-Russian separatists shot down a Ukrainian army helicopter on Thursday, killing 14 soldiers including a general, as government forces pressed ahead with an offensive to crush rebellions in the east swiftly following the election of a new president. REUTERS/Maxim Zmeyev (UKRAINE - Tags: POLITICS CIVIL UNREST)