LAKKI MARWAT, Jan 7: Three militants and a police officer were killed and a constable was injured in separate incidents of firing on Monday.

According to official sources, a police team headed by DPO Mohammad Idrees Khan surrounded a house in Abakhel village after a tip that militants were hiding there.

They said militants opened fire when police entered the house, killing Lakki SHO Mohammad Ismail and injuring a constable of the elite force, Zahid Ali.

Two militants died when police returned the fire, the sources said.

Meanwhile, two armed men on a motorbike attacked a patrol party of Ghaznikhel police when they signalled them to stop near Balkhi Koroona area.

Police opened fire, killing one of the attackers. The other suspect was arrested and seven grenades, four Kalashnikovs and live rounds were seized.