Egypt is to extend its nationwide state of emergency for three months from April 14, the official gazette said.
Egypt imposed the current state of emergency in April 2017 after two church bombings killed at least 45 people. It was extended in July, again in October and then January.
Egyptian President Abdel Fattah al-Sisi issued a decree on Saturday to extend a curfew already in place of a new declaration.
The latest extension will allow security forces to “take measures necessary to confront the dangers and funding of terrorism and safeguard security in all parts of the country,” the official gazette said.
Egypt faces an Islamic State insurgency in the remote North Sinai region that killed hundreds of soldiers and policemen in recent years and has expanded to include attacks on civilians.
Other Islamists operating in the western desert bordering Libya also attack security forces.
Egypt also extended a curfew on parts of North Sinai including areas of the border town of Rafah near Gaza from 7pm to 6am and around EL-Arish from 1am to 5am, the official gazette said.