Eighteen policemen including two officers were injured Friday in Jammu and Kashmir's Kupwara town after an irate mob attacked a police post with stones."Eighteen policemen including the station house officer (SHO) of Kupwara police station and an assistant sub-inspector were injured when an unruly mob resorted to he avy stone pelting at the police post in Kupwara town after the Friday prayers," a senior police officer told IANS here."The incident happened after a separatist leader made an inflammatory speech at the local mosque," he said, adding police exercised utmost restraint to ensure that no civilian casualty occurs."Some of the injured policemen have sustained serious injuries and have been shifted to hospital for treatment."Stone-pelting incidents have also occurred in the volatile town of Sopore in Baramulla after the Friday prayers.