Islamabad, Jan 10 (Reporter) At least four people, including three policemen, were killed in the wee hours of Wednesday morning in Kohat district of Pakistan's northwest Khyber Pakhtunkhwa province, local police said. According to police, unidentified miscreants launched an attack with automatic guns on a checkpost on Indus Highway in the district. Heavy contingents of police, security forces and rescue teams rushed to the site and shifted the bodies to a nearby hospital. Security personnel of the Pakistan Army cordoned off the entire area and started a search operation to track down the terrorists. Police said that the terrorists had managed to escape to the nearby mountainous area. No group claimed responsibility for the attack...////...