At least 15 people are reported to have died in clashes between police and Islamist protesters across Egypt.
Eight were killed in clashes in a Cairo suburb, while deaths were also reported in Alexandria, Giza governorate and Baheira province, according to Reuters.
Two policeman are said to have been killed when gunmen opened fire on a security checkpoint near the Pyramids.
Demonstrators have taken to the streets to mark the fourth anniversary of the 2011 uprising during which hundreds were killed.
Commemorations have come under intense scrutiny after a female demonstrator was killed during a rare left-wing protest in central Cairo yesterday.
Fellow protesters said she was hit when police fired to disperse the march.
Around 800 people are thought to have died in violent clashes before Mubarak resigned on the 11th of February 2011.
However Hosni Mubarak has been cleared in court of the murder of those who called for his removal.
Originally posted at 18.02