Cairo — Investigations confirmed that the blast that targeted a security compound in Mansoura was carried out with the help of Muslim Brotherhood members and Hamas, Interior Minister Mohamed Ibrahim said in a press conference on Thursday.
A car bomb exploded on December 24 at a security compound in Nile Delta's Mansoura, killing 16 people and injuring 134 others in one of the bloodiest attacks since the ouster of the Brotherhood's Mohamed Mursi in July.
Ibrahim said that Hamas, Palestinian offshoot of the Brotherhood, supported the perpetrators of the bombing, adding that detained defendants have confessed to having received a military training in the Gaza Strip.
Ansar Bait al-Maqdis, Sinai-based militant group, had announced its responsibility for the blast.
"Security forces have arrested some of those who were involved in shooting at opponents of deposed Islamist President Mohamed Mursi," the Interior Minister added.
He called upon Egyptians to "gather in millions and participate in the constitution referendum" which will take place in mid-January.
Ibrahim added that his ministry has put together a plan with the armed forces to secure Egypt.