KARACHI:In-charge Counter Terrorism Department (CTD) Raja Umar Khattab on Tuesday said the van blast at Karachi University was a suicide attack which claimed lives of four persons.
The suicide bomber was a woman and a banned organization had also claimed responsibility of the attack, he said talking to the media.
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Raja Umar Khattab said ball bearings were used in the explosives, which were in a hand bag carried by the bomber.
He said it could not be termed a security breach as large number of students came to varsity and the bags of all of them could not be checked.