Afghani Deputy Inspector General police "Abdullah Khan" said a bomb targeting an aide of the country's prime minister has killed five people in a northern area.
He said the bomb exploded Sunday in the Shangla area near the convoy of Amir Muqam, a cabinet aide and former parliamentarian, adding Muqam escaped unhurt, but the blast killed two police and his three private guards.
Khan said Shangla is part of the scenic Swat valley that local Taliban militants captured before an army offensive drove them out in 2009.
Swat Taliban chief "Mullah Fazlullah" escaped to neighboring Afghanistan. He was selected to lead the Pakistani Taliban after a suspected U.S missile strike killed his predecessor in late 2013.