Two masked gunmen have killed four Egyptian policemen in Saqqara, 22 miles (33 km) south of Cairo, three security sources said on Saturday.
The interior ministry said in a statement that armed attackers riding a motorcycle shot at a police car on a bridge, before fleeing.
According to one of the sources, the attackers opened fire with machine guns at a checkpoint in Saqqara, an ancient site where Egypt’s oldest pyramids are located.
Egypt has been struggling with an insurgency in the Sinai Peninsula which includes militants affiliated with DAESH that mostly targets security personnel.
Such attacks have escalated since the 2013 military overthrow of then President Mohamed Morsi, the first democratically elected president of Egypt.