Egypt's state news agency says unidentified gunmen in two cars opened fire on a police station in the upscale Cairo neighborhood of Heliopolis, killing an officer.
The drive-by attack early Friday happened ahead of planned nationwide protests by the Muslim Brotherhood. The MENA news agency says another officer and a civilian were wounded.
Security has been beefed up across the country in anticipation of the protests. The Brotherhood has also called for sit-ins to protest the new interim leaders who took over after the military ousted President Mohammed Morsi.
More than 1,300 people have been killed since Morsi's ouster, most of them people opposed to the coup. Violence peaked two weeks ago when security forces cleared two protest encampments by the Brotherhood.
