Tanks roll into Egyptian capital as army takes control . President Obama speaks to the Egyptian people after Mubarak gives an address . Mubarak says he has asked government to resign . Delta Air Lines said its last flight from Cairo will depart Saturday ; all other Cairo service was indefinitely suspended , said spokeswoman Susan Elliott . Egyptians observe a curfew that goes into effect at 6 AM ET .
Tanks roll into Egyptian capital as army takes control . President Obama speaks to the Egyptian people after Mubarak gives an address . Mubarak says he has asked government to resign . Egyptians observe a curfew that goes into effect at 6 AM ET .