Sudan’s security forces have reportedly arrested three prominent opposition figures after they met the Ethiopian Prime Minister who was in Khartoum to try to restart peace talks.
Opposition politician Mohamed Esmat was arrested on Friday soon after his meeting with PM Abiy Ahmed, aides said.
Ismail Jalab, a leader of the rebel SPLM-N group, and his spokesman Mubarak Ardol were detained early on Saturday.
It comes days after a crackdown on pro-democracy protesters left dozens dead.
Protest leaders have rejected an offer of talks from the Transitional Military Council (TMC), saying it cannot be trusted after the bloodshed.
Sudan has been controlled by the TMC since protests led to the ousting of long-time President Omar al-Bashir in April.
The military promised a transition to civilian rule but protesters had maintained a sit-in in Khartoum until security forces swept in on Monday and opened fire.
“A group of armed men came in vehicles at 03:00 (01:00 GMT) and took away Ismail Jalab… without giving any reason,” aide Rashid Anwar told reporters, adding that SPLM-N (Sudan People’s Liberation Movement North) spokesman Mubarak Ardol was also taken.
“We don’t know where they are being held,” he added.
The whereabouts of Mohamed Esmat are also not clear.
On Wednesday, the SPLM-N said its deputy head, Yasir Arman, was arrested at his house in Khartoum.
He had returned from exile following the downfall of Mr Bashir.
Mr Esmat and Mr Jalab are both leading members of the Alliance for Freedom and Change, an umbrella organisation of opposition figures, protest leaders and rebel groups.
“This amounts to a practical response from the military council that effectively rejects the Ethiopian prime minister’s mediation effort,” Khalid Omar Yousef, an opposition alliance leader, told reporters after Mr Esmat’s arrest.