CAIRO (AP) — Security officials say a bomb blast in front of a security building in one of Egypt's Nile Delta cities has injured 16 people.
The officials say the bomb exploded just after midnight Wednesday outside the Security Directorate in Dakahliya's provincial capital city of Mansoura.
Officials say citizens were injured, but did not immediately have a breakdown of how many of the casualties were citizens and how many were police officers.
Security officials say police forces surrounded the abandoned building after the explosion and exchanged fire with unidentified gunmen inside. No further details were immediately available.