Militants frequently cross the border from both sides to conduct attacks. Recently, 300 Taliban militants from Afghanistan's territory launched attacks on Pakistani border posts in which 34 Pakistani security forces were believed to be killed. It was also believed that Swat District Taliban leader Maulana Fazlullah was hiding somewhere inside Afghanistan before his death in 2018. In June 2011 more than 500 Taliban militants entered Upper Dir area from Afghanistan and killed more than 30 Pakistani security forces. Police said the attackers targeted a checkpost, destroyed two schools and several houses, while killing a number of civilians.