MINGORA Security situation in the restive Swat valley remains on edge amid escalating violence, despite government efforts to implement sharia in the Malakand Division.

In the latest incident, Swat Taliban abducted four policemen men from various areas of the district.

Official sources say the police have vacated their station in Kalam owing to security concerns. Policemen in the valley feel that they are ill-equipped to handle a large scale attack by the militants.