FILE PHOTO – Special police forces stand guard as a Greek monk is seen on the top of a church at Saint Catherine’s monastery, in the Sinai Peninsula, south of Egypt, in this file photo taken December 8, 2015. REUTERS/Amr Abdallah Dalsh/File Photo

An attack on security forces near Egypt’s St Catherine’s Monastery in south Sinai on Tuesday killed at least one police officer and injured four others, the Health Ministry said, just a week after two deadly church bombings killed 45.

Gunmen attacked a police checkpoint several hundred metres (yards) from the church entrance. No one has claimed responsibility.

The attack comes just 10 days before Pope Francis is scheduled to visit Egypt and just over a week after two deadly suicide bombings on Christian churches, claimed by Islamic State, plunged the country into mourning and marked one of the bloodiest days for the country’s Christian minority in decades.

St Catherine’s, located at the foot of Mount Sinai, is one of the oldest Christian monasteries in the world and a UNESCO world heritage site.

Egypt’s Christian minority, which makes up about 10 percent of the country’s 92 million people, has increasingly been targeted by Islamist militants, with three deadly church attacks and a spate of killings in northern Sinai in the span of four months.

A successful assault on St. Catherine’s, one of the world’s most iconic sites for Christians, would be the latest challenge to President Abdel Fattah al-Sisi, who has pledged to protect the religious minority as part of his campaign against extremism.

Egypt is battling an Islamist insurgency in the rugged and thinly populated northern Sinai, which gained pace after the military overthrew President Mohamed Mursi of the Muslim Brotherhood in 2013 following mass protests against his rule.

Attacks in Egypt’s southern Sinai, a popular destination for tourists dotted with Red Sea resorts, are by contrast rare.

(Reporting by Ali Abdelaty; Additional reporting by Ahmed Mohamed Hassan; Writing by Eric Knecht; Editing by Giles Elgood and Sandra Maler)