Unknown gunmen opened fire on a police van, killing four officers, one of which was an ASI. The mobile of the Saddar police station in Lakki Marwat was on a normal patrol when unidentified assailants opened fire on them in Wanda Mir Alami neighbourhood near Zainuddin Filling Station on Mianwali Road in Lakki Marwat, according to the information. As a result, four police officers were killed on the spot, and the suspects escaped after firing.