Sudanese protest and opposition leaders on Wednesday called for a campaign of civil disobedience in response to what one of them described as the military's "disappointing" answer to their proposals for an interim government.

This could put the protesters and the ruling Transitional Military Council (TMC) on a collision course following weeks of wrangling over how to manage an interim period after the ousting of long-ruling President Omar al-Bashir from office.

"We call for and prepare for civil disobedience," Madani Abbas Madani, a leader of the Declaration of Freedom and Change Forces (DFCF), told a news conference in Khartoum.