Police have reportedly fired tear gas as thousands of protesters rallied against the military-dominated government in Sudan.
The demonstrators in the capital Khartoum marched from various districts of the capital to the presidential palace.
Many carried national flags and chanted "No to military rule" and "The army might betray you, but the street will never betray you", witnesses told AFP.
Separately, in the country's far-west, an official and medics said 48 people had been killed in a flareup of tribal violence.
Protesters, in the latest of many rallies in recent weeks, set up road barricades with rocks and burning car tyres.
Following a 25 October coup, previous protests were met by a violent crackdown that left 44 people killed up to 22 November, a pro-democracy doctors' union said.
Hundreds more were wounded, mostly by bullets.
Sudan's top general, Abdel Fattah al-Burhan, seized power and detained Prime Minister Abdalla Hamdok but, after international condemnation and mass protests, reinstated him in a deal signed on 21 November.
Critics lambasted the agreement and pro-democracy activists vowed to maintain pressure on the military-civilian authority.
"Mr Hamdok betrayed the roadmap" of the transition, said Mahmoud Abidine, demonstrating in the centre of Khartoum.
Mr al-Burhan has long insisted the military's move was "not a coup" but a step "to rectify the transition" towards full democracy that started with the 2019 ousting of autocratic president Omar al-Bashir.
Sudan's top general Abdel Fattah Al-Burhan speaks during a ceremony to reinstate Prime Minister Abdalla Hamdok in Khartoum, Sudan, 21 November, 2021. Source: AP
Mr Burhan has pledged to lead Sudan to "free and transparent elections" in July 2023.
Meanwhile, in West Darfur state, near Chad, at least 46 people died on Saturday and Sunday in violence that escalated after an argument, the state's Governor Khamis Abdallah told AFP.
The Doctors' Committee, an independent union, gave a figure of 48 people killed in the Krink area of Darfur by live ammunition.
That brings to around 100 the number of people killed over about three weeks in Sudan's westernmost region, which has been ravaged by unrest for years.
