Hassib Sediqi, the spokesman for the National Directorate of Security, said today that Afghan authorities have confirmed "Pakistani military interference" in the attacks last Friday.
Sediqi says "special circles of the Pakistani military were behind all those attacks." He claims the Pakistanis were working through the Haqqani network, one of the most brutal militant groups in Afghanistan.
There was no immediate reaction from Islamabad, which has in the past denied such accusations from Afghanistan.
Islamabad wields considerable influence over the Taliban, which have waged a 14-year war against Kabul.