A minute’s silence was held in Kyiv for the victims of Tuesday’s bus tragedy in which 12 people died when it was struck by a shell near a government checkpoint.<br /><br /> Ukrainian President Petro Poroshenko has condemned the attack, blaming separatist rebels for the deaths.<br /><br /> “I have decided to announce January 15 as a day of mourning for all those who have died at the hands of terrorists.”<br /><br /> The bus incident happened in Buhas, south west of the rebel stronghold of Donetsk.<br />Regional officials blame pro-Russian separatists which they in turn have denied.<br /><br /> Russian Foreign Minister Sergey Lavrov has approved an OSCE<br />-led investigation into the matter. <br /><br /> “There are already several assessments (of the incident) – I won’t go into details – which show that there are several versions of what has happened. But they need a close examination before pointing at someone, as our Western and Ukrainian colleagues do.”<br /><br /> Even though the deadly bus attack has raised tensions, a new round of peace talks on t
