An Egyptian policeman of the K-9 (canine) unit inspects the site of a fourth bomb explosion on January 24, 2014 in a neighbourhood close to the Giza pyramids in the Egyptian capital Cairo.Egyptian men inspect the site of a fourth bomb explosion on January 24, 2014 in a neighbourhood close to the Giza pyramids in the Egyptian capital Cairo.Bloodstains are seen on the ground on January 24, 2014 following a fourth bomb explosion in a neighbourhood close to the Giza pyramids in the Egyptian capital Cairo. Egyptian supporters of the Muslim Brotherhood (Back) clash with supporters of the military in the southern Cairo Giza.