CAIRO (AP) — An Egyptian security official says two protesters have been killed in clashes Wednesday in Cairo’s Tahrir Square and its surroundings.

The official says the two died after being hit by birdshot fired at them as stone-throwing protesters battled police. They are the latest in more than 60 killed in clashes the past six days that have also left hundreds injured.

The official spoke on condition of anonymity because he was not authorized to speak to the press.

Egypt’s violence has spiraled after first erupting in Cairo on eve of last Friday’s second anniversary of the uprising that toppled authoritarian president Hosni Mubarak. It spread around the country, with the worst violence in the Suez Canal city of Port Said, which has virtually declared itself in revolt against the Islamist president.