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The death toll in Egypt has risen to 28 in clashes during protests in Egypt, state news agency MENA quoted the health ministry as saying.
Clashes broke out between followers of Mursi's Muslim Brotherhood and Egyptians who support the military, a reminder that tensions remain deep three months after the army takeover of the Arab world's most populous country.
Egyptian authorities had warned on Saturday that anyone who protested against the army during ceremonies marking an attack on Israeli forces during the 1973 war would be regarded as an agent of foreign powers, not an activist.
Thousands of members of the Brotherhood, which was recently banned, reached within five city blocks of Tahrir Square - the rallying point for protestors during the revolt that toppled autocrat Hosni Mubarak in 2011.
Police fired tear gas to try and keep them away from the square, where people gathered for celebrations to commemorate an attack on