The army said the paramilitary Rapid Support Forces (RSF) shelled the building, while the RSF said the building "situated within areas under [its] control" was subjected to aerial

bombardment and artillery attacks by the army.

The RSF in a statement accused the Sudanese army of "a clear attempt to erase the evidence of their heinous actions during their oppressive rule".

The intelligence headquarters is based in the same complex as the defence ministry, the army headquarters and a presidential residence.

The attack on the building came on the last day of a generally respected 72-hour ceasefire - which was due to expire at dawn on Wednesday.