Security forces have identified four terrorist organisations with direct links to recent bombings that have claimed more than 100 lives.
According to sources, evidence of direct involvement of the banned Tehreek-e-Taliban Pakistan (TTP), Jamaat-ul-Ahrar (JA), Lashkar-e-Jhangvi (LeJ) and Daesh also known as Islamic State of Iraq and Syria have been found in the recent attacks.
Sources said the heads of these organisations were operating from Afghanistan.