More than 100 paramilitary troops manned police stations around the northwestern Pakistani town of Buner Friday as Taliban militants who have swarmed the area patrolled its streets, officials said. Two platoons comprising 113 men were sent to the rugged region, just 100 kilometres (62 miles) from the capital Islamabad, which has been invaded by Taliban from the neighbouring Swat valley. "The provincial government has sent two Frontier Constabulary (FC) platoons to Buner, which have been posted in different police stations to check any attack by militants," local police official Rasheed Khan said. "Taliban militants were still patrolling streets in Buner Friday morning," he added. Khan said local forces did not have the manpower to approach mountains and other areas infested with militants. "We have been assured that a total eight platoons will be sent to Buner of which two have already reached," Khan said. Another police official, Arsala Khan, also said two platoons had arrived and had been deployed in police stations. Washington overnight said it was "extremely concerned" over the events in nuclear-armed Pakistan, which come after the government's controversial move to allow Sharia law in the Swat valley. In recent days hundreds of armed fighters have set up checkpoints and occupied mosques in the Buner district, warning residents not to engage in "un-Islamic" activity and barring women from public places.