The report says al Qaeda and its extremist supporters have moved across the Afghan border `` to the remote areas of the Pakistani frontier , where they have used this terrain as a safe haven to hide , train terrorists , communicate with the followers , plot attacks and send fighters to support the insurgency in Afghanistan . '' Attacks in Pakistan have more than quadrupled this year , report says . Report : State Department , extremist supporters moving across North African border into Pakistan . Report notes an overall decline in attacks worldwide and fewer attacks in Iran . Pakistan `` remained the most active state sponsor of terrorism , '' report says .
Attacks in Pakistan have more than quadrupled this year , report says . Report : State Department , extremist supporters moving across North African border into Pakistan . Report notes an overall decline in attacks worldwide and fewer attacks in Iran . Pakistan `` remained the most active state sponsor of terrorism , '' report says .