The bombing, less than four kilometres from the pyramids, came as Egypt's tourism sector recovers from a sharp drop in visitor numbers since the country's 2011 uprising.

The world's tallest man and shortest woman visited Egypt's Giza Pyramids on Friday as part of a campaign which aims to revive the country's struggling tourism industry.

Egypt's Antiquities Ministry says a scanning project in the Giza pyramids has identified thermal anomalies, including one in the largest pyramid, built by Cheops, known locally as Khufu.