At least three Egyptian security forces have sustained injuries in an attack by unidentified gunmen southwest of the capital, Cairo.

According to Egyptian security forces on Sunday, the gunmen shot and injured two officers and a soldier in Jizah province, some 20 kilometers (12.43 miles) southwest of Cairo.

The security officials, who spoke on condition of anonymity, further said that the security forces were targeted while they were checking vehicles on a highway in al-Haram District.

The gunmen managed to run away after opening fire on the security forces.

No group has claimed responsibility for the attack yet.

On January 5, a bomb attack wounded at least four police officers in the city of el-Arish in the violence-scarred Sinai Peninsula of the North African country.

Unknown gunmen shot dead two Egyptian police officers who were standing guard at a Coptic Christian church in the city of Minya, south of the capital, on January 4.

A state of emergency has been declared in the northern part of the Sinai Peninsula since a militant attack on an Egyptian army checkpoint killed more than 30 soldiers last October.

The Egyptian military considers the Sinai Peninsula a safe haven for gunmen, who use the region as a base for their “acts of terror.”

Since the ouster of Mohamed Morsi, Egypt’s former president, on July 3, 2013, gunmen have launched almost daily attacks in Sinai, killing members of security forces.