The bomber kills at least 40 people and injures 70 in Tehran . Dead include many people who were marking Shia holy period of Ashura . CNN 's Mohammed Tawfeeq in Baghdad contributed to this report . The bomber was a woman wearing an abaya , a skirt - like dress , official dress .
The bomber kills at least 40 people and injures 70 in Tehran . Dead include many people who were marking Shia holy period of Ashura . The bomber was a woman wearing an abaya , a skirt - like dress , official dress .