Security sources confirmed Sunday that the cost of the terrorist attacks carried out by the Muslim Brotherhood-affiliated militant group Helwan Brigades, amounted to EGP 40 million. General prosecution's investigations revealed that the group carried out 32 attacks targeting police and army personnel, vehicles and buildings, in addition to power lines, power stations and other utility buildings. On his part, General prosecutor, councilor Hisham Barakat indicted 215 Helwan Brigades militants over terror related accusations.