Hassan al-Turabi, the Sudanese opposition leader who helped bring President Omar al-Bashir to power, has died at 84 in the capital Khartoum.
A hospital source told AFP news agency he had suffered a heart attack.
Mr Turabi was a key ally of Mr Bashir when he took power in a coup in 1989 but they fell out a decade later.
He was one of the most divisive figures in the country’s turbulent history, says the BBC’s former Sudan correspondent, James Copnall.
For the first decade of Mr Bashir’s rule, Mr Turabi was the de facto leader of the country, and his influence spread beyond Sudan’s borders.
His death was announced by state TV, which described him as a “well-known Islamic thinker”, and was confirmed by his party.source: BBC