The call came a day after they organised mass protests against the ruling generals that shook the country.

The call aims at increasing pressure on the ruling generals to hand power to a civilian administration. The Alliance for Freedom and Change said in a statement that the civil disobedience action will be preceded by mass protests on July 13.

The civil disobedience campaign, the second in less than a month, comes as protest leaders and ruling generals argued about who was to blame for the violence during the mass "million-man" march on Sunday that left 10 dead and scores wounded.

The Alliance for Freedom and Change posted its call for the civil disobedience campaign on the Facebook page of the affiliated Sudanese Professionals Association group.

"On Sunday, July 14, a civil disobedience and total political strike in Khartoum and across all provinces will be held," the movement said.

The Sudanese Professionals Association launched the huge protests in December. This led the army to finally topple longtime president Omar al-Bashir in April.

In the political instability that followed the generals seizing power, the protest leaders launched a similar civil disobedience campaign on June 9 and paralysed the entire country.

The protest was called off three days later following mediation by Ethiopian Prime Minister Abiy Ahmed.