Daily SumUp

The city has been held by the paramilitary Rapid Support Forces (RSF) since the start of the country's brutal civil war nearly two years ago - but the army has retaken much of it and believes it is on track to seize the rest.

Regaining the capital would be a tremendous victory for the military and a turning-point in the war, although by itself would not end the conflict.

In recent weeks troops have mostly encircled Khartoum, coming up from the south after surging through central Sudan, and clearing city districts in the north and east, squeezing the remaining RSF fighters into the centre.

Both sides have been accused of war crimes, which they deny.