Guna (MP) : Three personnel – including an officer – were martyred and a driver grievously injured when poachers opened fire on a law-enforcement vehicle in Aron Police Station limits, police said on Saturday. Following inputs regarding the presence of more than half-a-dozen ruffians, a patrol team reached the place during the intervening night. The deceased were identified as Sub-Inspector Rajkumar Jatav, Head Constable Neeraj Bhargav and Const Santram Meena. Lakhan Giri – who was at the wheel – was rushed to the District Hospital. An encounter followed the ambush. A massive search operation is underway against the accused. Chief Minister Shivraj Singh Chouhan has convened a meeting of senior officers in the state capital. Guna district adjoins Bhopal to the north.