Pakistani police say they have detained two men suspected in last month's deadly suicide bombing at a Muslim shrine in Islamabad.
Pakistani officials have confirmed the two are in custody, but have not released further information.
Police say the men are suspected of involvement in the May 27th bombing of the Bari Imam Shrine during a Shi'ite Muslim religious festival. At least 19 people were killed in the blast.
While some Sunni Muslims were also at the festival, Interior Ministry authorities have said they are investigating whether sectarian militants were involved in the bombing.
Hundreds of people have been killed in reprisal attacks by Sunni and Shi'ite militants over the past decade and a half.