The army and the paramilitary group it is battling agreed to a 24-hour cease-fire. But many residents were unsure whether the truce was solid enough to safely flee.

As fighting persists in Khartoum, including at its main airport, nations have said they cannot repatriate their citizens or have no immediate plans to do so.

What led the two generals, recently allies, to turn their forces on each other — devastating a country of 45 million people?