At least 16 dead on Egypt uprising anniversary

At least 16 people have been killed in clashes between police and protesters on the fourth anniversary of the uprising that toppled President Hosni Mubarak.

One policeman was among the dead and dozens of protesters were also injured, health officials confirmed.

The clashes follow the death of activist Shaimaa al-Sabbagh, who was killed during a march in Cairo on Saturday, as Orla Guerin reports.