<p>An expert in explosives and computers, Mohammed Ali Qasim, alias Abu Sohaib al-Makki, 34, had been involved in recent terror activities in Karachi, reported Dawn Thursday. <br /><br />A senior security official said that Yemeni-origin Qasim's arrest has yielded a "treasure trove" of information. <br /><br />The exact date of his arrest is not known, but it is understood that he was held days after Al Qaeda chief Osama bin Laden was gunned down May 2 by US commandos who stormed his Abbottabad hideout.<br /><br />Before moving to Karachi, Qasim stayed in South Waziristan, North Waziristan, Peshawar and Faisalabad.<br /><br />The media report said that the Al Qaeda operative had been in Pakistan since June 2001.<br />Initial investigations have shown that he earlier operated along the Pakistan-Afghanistan border facilitating movements of Al Qaeda operatives.</p>
<p>An expert in explosives and computers, Mohammed Ali Qasim, alias Abu Sohaib al-Makki, 34, had been involved in recent terror activities in Karachi, reported Dawn Thursday. <br /><br />A senior security official said that Yemeni-origin Qasim's arrest has yielded a "treasure trove" of information. <br /><br />The exact date of his arrest is not known, but it is understood that he was held days after Al Qaeda chief Osama bin Laden was gunned down May 2 by US commandos who stormed his Abbottabad hideout.<br /><br />Before moving to Karachi, Qasim stayed in South Waziristan, North Waziristan, Peshawar and Faisalabad.<br /><br />The media report said that the Al Qaeda operative had been in Pakistan since June 2001.<br />Initial investigations have shown that he earlier operated along the Pakistan-Afghanistan border facilitating movements of Al Qaeda operatives.</p>