Islamabad: National Accountability Bureau (NAB) arrested Sindh Assembly Speaker Agha Siraj Durrani in Islamabad Wednesday on charges of possessing assets beyond his known sources of income. According to a press release issued by NAB in Islamabad, the arrest was carried out by the NAB Bureau Karachi with the collaboration of NAB Rawalpindi and NAB headquarters intelligence wing. The accused will be produced in the accountability court for remand on Thursday.