A bomb killed 21 people shortly after midnight during a holiday Mass at a Coptic Christian Church in Alexandria, Egypt. Al Qaeda in Iraq had previously declared its intention to attack Egypt’s Christians, though it’s unclear if it is responsible for the attacks; Egypt has long denied that al Qaeda has a foothold in its borders. Police originally believed the bomb was detonated from a car, but now think that it was probably a suicide bomber who detonated among the crowd. One thousand people were attending the Mass. After the attack, Christians clashed with Muslims in the streets.