Thousands of Sudanese protesters took to the streets in the capital Khartoum and other cities on Saturday to mark the 40th day since the June 3 raid at a sit-in outside the country’s military headquarters that killed 128 demonstrators, according to organizers. The “Justice First” marches were called by the Sudanese Professionals’ Association (SPA), the largest protest group. Activists have called for an investigation into the deaths. The newest demonstration comes as representatives from the protest groups and the Transitional Military Council (TMC) are set to officially sign a power-sharing deal reached two weeks ago whereby a sovereign council will be ruled by the military for the first 21 months, followed by a civilian leadership for the final 18 until elections are organized. The pact also stipulates that an independent Sudanese investigation look into the June 3 violence. The two sides have been at loggerheads since the overthrow of President Omar Al-Bashir on April 11.