Marilyn Ogar, the spokesperson for the Department of State Security Services (SSS) said yesterday that 21 detained terrorists died during the attempted jailbreak at the Service's headquarters in Abuja on Sunday morning. "Following our earlier releases, it has been established that eighteen (18) casualties were recorded, while two (2) Service personnel sustained serious injuries. Three (3) other detainees who sustained gunshot injuries during the incident have also died. "Meanwhile, investigation is still ongoing to ascertain the immediate and remote causes. "We wish to state that the roads leading to the office were cordoned-off to prevent possible assistance from external collaborators. During this period, the precinct of the office and adjoining neighborhoods were thoroughly searched. "We wish to restate our commitment to the safety of the people and the Nigerian nation at large." Marilyn Ogar said in a further statement released yesterday