DERA ISMAIL KHAN, Pakistan, Feb 24 (Reuters) - Gunmen ambushed a police vehicle and killed five officials in northwest Pakistan on Tuesday, police said, as the South Asian nation struggles to quell a rising wave of militant attacks and faces renewed border tensions with neighbouring Afghanistan.
The ambush in Kohat city, situated along the border with Afghanistan, comes a day after a drone and gun attack killed three paramilitary troops in the nearby city of Karak.
