ISLAMABAD , Pakistan ( CNN ) -- Hundreds of Pakistani residents have taken up arms and are battling local Taliban militants in the wake of a deadly mosque attack last week . A Pakistani police stands guard at a checkpoint in Peshawar , Pakistan on June 8 . It is the first major battle between the residents of northwest Pakistan and Taliban militants near the Afghanistan border . The residents are outraged over a suicide attack on a local mosque during Friday prayers that killed at least 40 people and wounded some 80 others . Starting on Saturday morning , some 400 villagers in the Upper Dir district formed a `` lashkar '' -- or militia -- to fight the Taliban , killing 14 of the militants as of Sunday evening , according to local administrator Atiq Ur Rehman . Four of the villagers have been injured in the battle , Rehman said . The militia have burned a number of houses thought to be sheltering the militants , according to Upper Dir police chief Ijaz Kahn . Both the residents and Taliban fighters are using heavy weapons , including rocket launchers and anti-aircraft weapons , Rehman said . There is a long history of Taliban presence in the area , including foreign fighters in leadership roles , local officials said . Authorities said Taliban fighters were driven out of Shot Ghas and Ghazigay -- two villages where the Taliban have support . The villagers took up arms against the Taliban after Friday 's suicide attack at a mosque in Hayagay Sharqi -- a village in Upper Dir located about 35 km ( 22 miles ) from the Afghan border and known for being against the Taliban . Upper Dir is a part of the Swat Valley , where the Pakistani military has waged a month-long operation against Taliban militants , but the district has not been part of the ongoing military offensive . The United Nations has said an estimated 2 million Pakistanis have been displaced by fighting between the Pakistani military and Taliban militants . The militants threatened to continue attacking cities in Pakistan until the military ends its operations against Taliban militants . As a result , Pakistani authorities have increased security in Islamabad , Pakistan 's capital city . CNN 's Ingrid Formanek and journalist Nasir Habib contributed to this report .
Upper Dir , part of Swat Valley , is where Pakistan army are fighting Taliban militants . U.N. says an estimated 2 million Pakistanis have been displaced by fighting . Backlash follows suspected Taliban suicide attack Friday at a mosque . Official : " The government has taken all necessary measures to ensure the safety and security of its citizens in accordance with national laws and regulations." Score: 6 Title: TIL that there was once a man