An Egyptian policeman and a civilian have been killed in a drive-by shooting in the Cairo neighborhood of Heliopolis, ahead of nationwide protests in the North African country.
The casualties come after heavily-armed gunmen opened fire at a police unit in Cairo's Heliopolis district early on Friday.
Local security officials say another police officer was also injured in the deadly attack.
Meanwhile, tensions in Egypt are running high as supporters of the ousted president, Mohamed Morsi, take to the streets of the capital. Police have fired tear gas to disperse angry protesters gathering at Cairo's Sphinx Square.
The crackdown comes as people in Cairo prepare for a one-million man march to call for the reinstatement of the ousted president.
The military-installed government has beefed up security around the capital and warned protesters of a harsh crackdown if they attack any government building.
On Thursday, Egypt’s Interior Ministry warned that live ammunition will be used on demonstrators who attack public institutions during Friday’s rallies.
The government of army-appointed interim President Adly Mansour has launched a fierce crackdown on the supporters of the ousted president and arrested many Muslim Brotherhood members, including the party’s supreme guide, Mohamed Badie, who was detained on August 20.
Several Muslim Brotherhood leaders are on trial at Egyptian courts.