Wounded 90 near a religious procession in country's northwest.
Attack occurred in northwest ahead of Islamic holiday.
The Taliban claimed responsibility for the bombing south of the capital.
The two Pakistani girls will now be escorted by armed guards.
Two guards died in what appeared to be an attempt to target a U.S. base.
Afghanistan's president praised Pakistan for releasing a group of Taliban prisoners, a move he hopes will kick start peace talks with the militant group.
Will meet in Islamabad for decree on young activist, shot in October.
Top Afghan peace mediator hailed Pakistan's recent decision to free nine members of the Taliban who favor negotiations.
The Taliban accidentally leaked its email list when a spokesperson CC'd 400 emails that should have been BCC'd.
Pakistan continues its release of Afghan Taliban prisoners.
