At least 21 other forces were wounded in the shooting at the National Security headquarters in el-Arish, the capital city of North Sinai province, they said, ABC News reported.
A list of casualties obtained by The Associated Press showed that some forces suffered from gunshots and others faced breathing difficulties from tear gas that was fired inside the facility. There were eight officers among the wounded, the list showed.
The officials spoke on condition of anonymity because they were not authorized to brief the media.
The circumstances surrounding the shooting were not immediately clear, and there was no immediate comment from the Interior Ministry, which oversees police forces.
MNA/PR