Cairo, Dhu-AlQa'dah 05, 1436, August 20, 2015, SPA -- Cairo was rocked before dawn Thursday by a massive car bomb that hit a national police force building in the northern suburb of Shubra al-Kheima, injuring 29 people, dpa cited the Health Ministry. The bomber parked his car outside the security cordon of the building of the National Security agency before fleeing on a motorcycle that had been following him, the Interior Ministry said. The Interior Ministry said six policemen were injured. The Health Ministry, in a statement quoted later by state-run newspaper al-Ahram, said 29 people were injured in total, of whom 27 had only minor injuries. --SPA 11:07 LOCAL TIME 08:07 GMT www.spa.gov.sa/w