Sudanese protesters have been demonstrating in the capital, Khartoum, demanding justice for dozens of opposition supporters massacred outside army headquarters a year ago.
Demonstrators carried posters of the dead and burned tyres.
The Sudanese Prime Minister Abdalla Hamdok promised that justice would be done, but rights groups say there has been little progress in the investigation.
Activists say nearly 130 protesters were killed by a paramilitary force when it cleared their camp.
The protesters were demanding a swift transition to civilian rule following the ousting of President Omar al-Bashir, who held power for nearly 30 years.