Iranian President Mahmoud Ahmadinejad has ordered the authorities to swiftly track down those who planned the suicide attack in the southeastern province of Sistan-Baluchestan.<br/><br/>The official IRNA news agency quoted him as assuring the Iranian people, that the criminals will receive very soon a response to their inhuman acts.<br/><br/>At least 50 people, including seven commanders of Iran's elite Revolutionary Guards, were killed yesterday when a suicide bomber blew himself up at a meeting of the Guards in the city of Pisheen in Sistan-Baluchestan. Official figures, however, put the death toll at 30. President Mahmoud Ahmadinejad has said that the attack was plotted from neighbouring Pakistan. Iranian Foreign Ministry has summoned Pakistan's charge d'affaires in Tehran over the incident and told him that Tehran has evidence that the attack was launched from Pakistani soil. According to a statement of Iranian Foreign Ministry, Tehran voiced its protest to Islamabad over the terrorists' use of Pakistani soil to conduct activities against Iran. Iranian Foreign Ministry asked Pakistan to deal firmly with terrorists active on Pakistani soil. <br/> <br/>Pakistan-based terrorist group Jundullah has claimed responsibility for the deadly attack in the borderline Pishin region, near the city of Sarbaz. <br/>