Umar Patek is accused of being responsible of attack in Karachi that killed 11 people . CNN 's Kathy Quiano contributed to this report . Patek reportedly was arrested in Pakistan on March 2016 . The official said he does not know why Australia gave the warning .
Umar Patek is accused of being responsible of attack in Karachi that killed 11 people . Patek reportedly was arrested in Pakistan on March 2016 . The official said he does not know why Australia gave the warning .