In eastern Ukraine, a military chief of Ukraine's pro-Russian rebels, Arseny Pavlov, was killed in a bomb attack in Donetsk, local authorities have said, calling it a declaration of war. Alexander Zakharchenko, the Prime Minister of the self-styled Donetsk People's Republic, said Ukrainian President Petro Poroshenko has breached the ceasefire and declared war. <br/><br/>Pavlov was killed yesterday by a bomb placed in the lift of a building. A fighter in the Sparta unit said Pavlov's bodyguard also died in the explosion.<br/><br/>All parties to the Ukraine conflict agreed to a peace deal brokered by Germany and France in February 2015, but while the so-called Minsk accords reduced the intensity of fighting,<br/>they failed to stop it.