Powerful bombing at Egypt police station kills 14

The Mansoura attack came shortly after the Islamic militant group Ansar Beit al-Maqdis, or the Champions of Jerusalem, threatened more attacks on the military and police, saying it considers Egyptian troops to be infidels because they answer to the secular-leaning military-backed government.

The group—which gained notoriety after expanding its operations outside of the restive northern Sinai province—has claimed responsibility for a number of suicide car bombings and deadly attacks, including a failed assassination attempt on Egypt's Interior Minister in September. The minister escaped unharmed.

Ansar Beit al-Maqdis is believed to have ties with Palestinian militants in the neighboring Gaza Strip, and officials have said other foreign militants have found refuge in Sinai during the ongoing turmoil.

In its message, which appeared on militant websites Monday, the group said it “will be more determined to fight” the military and police if its warning is ignored. It urged them to “repent” from participating in “this infidel bastion that is at war with God and his Prophet, and stop serving in its ranks.”

But MENA quoted Shawki, the Cabinet spokesman as saying that “such terrorist operations will not prevent us from moving forward with the road map.”

He was referring to the upcoming referendum on a draft constitution Jan. 14-15, a key step in a military-backed transition plan aimed at holding presidential and parliamentarian elections later next year.