KIEV , Ukraine, May 6 (UPI) -- Five Ukrainian soldiers were killed, the Ukrainian government reported Wednesday, shaking a three-month truce in the eastern part of the country.
While relatively calm since February, when a truce went into effect, monitors from the Organization for Security and Co-Operation in Europe reported over 550 explosions last week of mortar and heavy artillery in the Donetsk and Luhansk regions, where pro-Russian separatists are fighting Ukrainian troops.