A Pakistani intelligence officer says an employee at the country's state-run Islamic advisory body has been detained for allegedly playing an important role in the failed Times Square car bombing in New York City.
The officer said Thursday the suspect accompanied the Pakistan-American bomber to Pakistan's northwest to meet militant leaders.
He identified the suspect as Faisal Abbasi, who works for the government's Council of Islamic Ideology.
A security official in Islamabad tells CBS News' Maria Usman the suspect was taken into custody at a madrassa in the sprawling capital city.
The officials spoke on condition of anonymity because the Pakistani security agencies do not permit operatives to be named in the media.
Prosecutors in New York released a video Wednesday of the government's explosion of a bomb the size of the one they say Shahzad packed into the back of a sports utility vehicle for his failed bombing in Times Square. The results of the bomb test show the attack would have been "devastating to the surrounding area" had it succeeded.
(Scroll down to watch the explosion video)
The video was part of evidence released Wednesday by prosecutors. In a second video released Wednesday, Shahzad boasted that he thought the bomb would kill at least 40 people and that he planned to detonate a second bomb two weeks after the first, prosecutors said, quoting the former financial analyst in a video where he said he'd hoped "to join my brothers in jihad" ever since the Sept. 11, 2001, attacks.
Shahzad should get life in prison when he is sentenced Oct. 5, prosecutors said in a filing, arguing that he "had every intention of delivering a powerful and terrorizing strike to the heart of New York City."
Meanwhile, the Pakistani government ordered security forces to block oil tankers and trucks carrying NATO supplies into Afghanistan at a crucial border crossing Thursday, officials tell CBS News.
Allat the Torkham border checkpoint after threats by Pakistani officials to stop providing protection to NATO convoys if the military alliance's choppers hit Pakistani targets again. Earlier Thursday, Pakistani officials alleged a NATO airstrike hit a border post, killing three Pakistani troops.