Upper Dir , part of Swat Valley , is where Pakistan army are fighting Taliban militants . As a result , Pakistani authorities have increased security in Islamabad , Pakistan 's capital city . Pakistan says an estimated 2 million people have been displaced by Taliban . Backlash follows suspected Taliban suicide bombing attack at a mosque . Official : Both sides using heavy weapons , including anti - aircraft weapons .
Upper Dir , part of Swat Valley , is where Pakistan army are fighting Taliban militants . Pakistan says an estimated 2 million people have been displaced by Taliban . Backlash follows suspected Taliban suicide bombing attack at a mosque . Official : Both sides using heavy weapons , including anti - aircraft weapons .