Explosion heard near army base in Egypt's Sinai: witnesses

CAIRO (Reuters) - A loud explosion rang out near the Egyptian town of al-Arish in the Sinai Peninsula on Friday afternoon in what appeared to be an attack on an army installation, eyewitnesses said. The military post was on the road between al-Arish and Rafah, near the border with the Gaza Strip, the witnesses said. Ambulances were heading to the scene, medical sources told Reuters.