A police source told Ahram Online that the two cars parked in front of the Saints Church in Alexandria were not the source of the explosion that killed 21 people and injured more than 70.
According to the source, who spoke on customary condition of anonymity, the explosion was caused by a suicide bomber who died in the attack.
According to the source, police investigations show that the explosive device used was locally manufactured and contained steel nuts and bearings to cause as many injuries possible. Investigations have also revealed that the focal point of the explosion had been away from the parked cars. .
Police, the source said, believe that the suicide bomber had ties to "foreign elements."