Egypt crisis: Multiple explosions rock Cairo

At least six people have been killed and some 100 more injured in four explosions in the Egyptian capital, Cairo.

Militants have stepped up their campaign against security forces, with the attacks coming on the eve of the third anniversary of the 2011 uprising.

The biggest explosion occurred outside police headquarters, with one close to a metro station, one near the Giza Pyramids, and the fourth outside a movie theatre.

Orla Guerin reports from Cairo.