At least 15 people have been killed in violent clashes between protesters and police in Egypt.

This, as thousands mourned a young mother reportedly shot dead by security forces.

Both pro and anti-government rallies have been held as the country marks the four-year anniversary of the Arab Spring, when dictator Hosni Mubarak was overthrown after 30 years in power.

Dissent has grown over the past week, despite a nationwide ban on all forms of public assembly without prior government permission.