Tens of thousands of demonstrators packed the streets of central Khartoum, their mood turning from celebration over Bashir’s expected departure to frustration at the announcement of the military-led transition.
Bashir, 75, had faced 16 weeks of demonstrations against his rule.
Announcing the ouster, Defence Minister Awad Mohamed Ahmed Ibn Auf said Sudan would enter a two-year period of military rule to be followed by presidential elections.
Ibn Auf announced a state of emergency, a nationwide ceasefire and the suspension of the constitution.
Later in the day, a newsreader on state television said a curfew would be imposed from 10 p.m. to 4 a.m.