Egypt imposed a partial curfew in Sinai on Wednesday, a day after a deadly attack claimed by the Islamic State group near a monastery on the volatile peninsula.
Prime Minister Sherif Ismail declared the night-time curfew in some areas of northern Sinai, state television reported.
The curfew takes effect starting Wednesday and will last from 7 pm to 6 am local time every day until further notice. The area affected stretches from the turbulent Rafah Hill to the area of Jabal al-Halal, according to the broadcaster.
There will be one exception to those times. The curfew will only last for four hours daily - from 1 am to 5 am - in al-Arish, the capital city of northern Sinai, and an adjacent trunk road, the report said.
On Tuesday, one policeman was killed and three others injured in an attack on a security checkpoint near the St Catherine Monastery in southern Sinai.
Egypt has seen a series of deadly attacks - mainly targeting security forces in Sinai - since the army's 2013 overthrow of Islamist president Mohammed Mursi following mass protests against his rule.
In October 2014, President Abdel Fattah al-Sisi declared a state of emergency in some parts of Sinai following a suicide attack on a security checkpoint that killed at least 30 soldiers.
Earlier this month, Egypt announced a nationwide state of emergency for three months in response to twin suicide attacks on two Coptic churches which killed at least 45 people and were claimed by Islamic State.
The Monastery of St. Catherine in Egypt's south Sinai, where a policeman was killed and three others wounded on Tuesday.