Egyptian security forces killed 17 militants during a raid on their hideout in the North Sinai capital of Arish, the interior ministry said in a statement on Tuesday.
The raid came after security forces received information that a group of terrorists were using the hideout in the Obeidat district to launch violent attacks targeting police and army personnel, the ministry said.
The militants exchanged fire with security forces, leading to the death of 11 terrorists. Others fled to an abandoned house in the Hous district and were followed by security forces, resulting in the death of six others.
The militants were found in possession of machine guns, three improvised explosive devices and two suicide belts.
Earlier this week, the military said it had killed ten terrorists as it thwarted a terrorist attack on a security checkpoint in North Sinai.
Egypt is fighting an Islamist militancy based in the northern part of the Sinai Peninsula that has gained pace since 2013.
Hundreds of security-forces personnel have been killed in attacks claimed by militants, while the military has killed hundreds of extremists as part of an extensive campaign to crush the militancy in the border region.