Peshawar  - At least two police personnel were killed and several others injured in a massive explosion that ripped through a police check post in Kohat Road area of the city on Monday. According to police report, the blast took place near Shahabkel police check post located on Kohat Road.The injured and bodies were shifted to Lady Reading Hospital.The blast was so powerful that it was heard nearly in the entire city. Further investigations have been started in to the incident.