Meanwhile, Pakistani officials released information of Faisal Shahzad. The country is also pledging their help and support to the US in the investigation.

Rehman Malik, Pakistan Interior Minister, said, "The initial information which we have is this guy had obtained an ID card from Karachi and his family belongs to Pukhtoonkhwa Khyber from an area called Pabbi, and we have already launched a probe."

Pakistan detained several people in connection with the bombing, and they have been taken into custody in Karachi. Media reports claim all of them are relatives of Faisal Shahzad.