Demonstrations began on 19 December after the government announced price rises for fuel and bread.
The protests have escalated into broader calls for an end to the rule of President Bashir, who came to power after a coup in 1989. Activists accuse him of mismanaging the economy.
Over the past year, the cost of some goods has more than doubled, while the Sudanese pound has plunged in value.
…Its economy has also been strained by over 20 years of US sanctions, which were lifted in October 2017.
…Mr Bashir’s regime has been accused of widespread human rights abuses.
In 2009 and 2010, the International Criminal Court (ICC) charged him with several counts of genocide, war crimes and crimes against humanity, and a warrant was issued for his arrest.
Walls of the tomb are decorated with colored scenes of the priest with his wife, mother and other family. Mostafa Waziri, the head of the excavation mission, said other drawings show funeral furniture manufacturing, music performances, pottery making, hunting, sailing and wine making.