CAIRO (AP) — The anniversary of Egypt’s 2011 uprising brought a violent display of the country’s furious divisions Saturday, as giant crowds danced at government-backed rallies and security forces crushed demonstrations by rival Islamists and some secular activists.

Clashes nationwide killed at least 29 protesters, health officials said. The starkly contrasting scenes reflect the three years of turmoil Egypt has faced since the Jan. 25, 2011 revolution began and ultimately toppled autocrat Hosni Mubarak, replacing him with a transitional military council.