Complex sentence: On the day of dispersal of the sit-ins in Rabia and Nahda squares in Cairo, the Egyptian Health Ministry reported 638 civilians killed and 3,994 injured, in addition to 43 police officers reported died during the shooting and clearing events.
Split into simpler sentences: On the day of the events the Egyptian Health Ministry reported 638 civilians killed and 3,994 injured. In addition to 43 police officers reported died during the shooting and clearing events.