(ANSA-AFP) - KYIV, APR 22 - Ukraine has restarted pumping Russian oil to Hungary and Slovakia after completing repairs to the Druzhba pipeline damaged by a Russian attack, a Ukrainian energy industry source told AFP on Wednesday. "At 12:35 (0935 GMT), oil transit was launched and pumping began," the source said. Ukraine hopes the move will unblock the last hurdle to securing a multi-billion-euro EU loan that has been held up by Hungary's outgoing nationalist leader Viktor Orban. (ANSA-AFP).