Pakistan has held 216 suspects after a major sweep by the military and the police saw more than 5,000 detained over the Easter Sunday suicide bomb attack.
Prime Minister Nawaz Sharif vowed to crack down on Islamist militants in the country after the attack in Lahore claimed the lives of more than 70 people, including 29 children.
Video report by ITV News' Helen Callaghan.
A small Christian community was the target of a suicide bombing at a public park in Lahore, Pakistan.
A faction of the Taliban claimed responsibility for the attack, which happened near to where children were playing on swings and rides.
Many of the victims were women and children and witnesses described distressing scenes of chaos.
Users thousands of miles from Lahore have reported being asked to check in safe following the bombing which killed at least 65 people.
Police say at least 280 other people are injured, and most of the dead and injured are women and children.