Ukraine President Poroshenko's threat after rebel polls Ukraine's President is to chair a crisis meeting of his security chiefs, following elections in rebel-held regions of the east. In an address, President Petro Poroshenko said Sunday's polls in parts of the eastern Donetsk and Luhansk regions could derail the entire peace process. Two pro-Russian leaders were declared the winners of the polls and are expected to be sworn in next today. The West says the elections were illegal, but Russia is backing them. More than 4,000 people have been killed in fighting in eastern Ukraine since April. BBC