Blast injures election candidate in Ukraine's rebel east The army and emergency services are at the scene of a blast that injured three people in Ukraine's rebel stronghold Donetsk, including a candidate for the post of the self-proclaimed republic's leader. The incident comes just four weeks after the head of the Donetsk People's Republic (DPR), Alexander Zakharchenko, was killed in a bombing at a café in broad daylight. IMAGES AND SOUNDBITE