Kurdish militants detonated a roadside bomb in southeast Turkey overnight, killing three police officers in an armoured vehicle while a rocket attack knocked out power in part of the region's main city, security sources said on Monday, according to Reuters. Sunday night's bomb ripped the armoured vehicle apart at 11:30 p.m. (2130 GMT) near the municipality building in the town of Idil, in Sirnak province near the Syrian border, the sources said. Seven police officers were hurt and three died of their wounds in hospital. PKK fighters simultaneously attacked a local military base with rocket launchers and rifles, causing no casualties, sources said. Reinforcements were sent to the town from neighbouring Cizre and clashes were continuing in the area. In the region's largest city, Diyarbakir, PKK militants fired a rocket launcher at a police armoured vehicle around 00:30 a.m. (2230 GMT) but missed, instead hitting a transformer that triggered a blast which cut off power supplies in the area, sources said.