Kiev: At least five pro-Russian protestors were killed Thursday afternoon during an "anti-terror" operation in Ukraine`s eastern city of Slavyansk, the country`s interior ministry said. During "counter-terror" actions at three checkpoints set up by a pro-Russia militia outside the city, five protestors were killed, Xinhua reported citing the ministry`s press service. One Ukrainian officer was also injured, it said. On Wednesday, Ukraine resumed its "anti-terror" operation in eastern regions after pro-Russian activists allegedly kidnapped and tortured several journalists and murdered a pro-government politician. Ukraine suspended its "counter-terror" measures last week following an agreement with Russia, the US and the European Union in Geneva.