Pakistani security forces investigating connections with last weekâs suicide bombings in London detained four suspects in Faisalabad on Friday. An intelligence official in Pakistan earlier revealed one of the suicide bombers, Shehzad Tanweer, met two years ago in Faisalabad with a member of a militant group linked to Al Qaeda, now in custody for bombing a church in Islamabad in 2002. âThe security agencies have picked up four people. They were taken to an undisclosed location, but we were not involved in this operation,â a Faisalabad police official said.Meanwhile, British police have given Pakistan a list of terror suspects with possible links to the London attacks, officials said on Friday, as two religious schools denied they had hosted one of the bombers. Authorities are pursuing information on Shehzad Tanweer, who reportedly studied at a religious school in Pakistan last year, according to security officials. âThey provided us with names of certain individuals for information following the London bombing. We are checking the linkages here,â a senior security official said. Pakistani authorities are also investigating whether Tanweer had links to two militant groups, understood to be Jaish Mohammad and Lashkar-e-Taiba. Both are known to have ties with the Al Qaeda network. Jaish is loosely linked with the Jamia Manzoorul Islamia seminary in Lahore, which denied British press reports that Tanweer had studied there.