A Sudanese rebel leader who returned from exile after the overthrow of president Omar al-Bashir was arrested his organisation said.
Yasir Arman, deputy head of the Sudan People’s Liberation Movement-North (SPLM-N) group, came back last month and joined other opposition groups meeting military leaders according to local media reports.
Those talks ground to a halt, then fell apart after security forces raided a protest camp in central Khartoum on Monday.
Arman was detained by security services at his house in Khartoum, a spokesman for his group said, without giving any details.
No one was immediately available to comment from the security services.
Arman was sentenced to death in absentia for his part in a rebellion against Bashir’s government in the Sudanese state Blue Nile in 2011.
SPLM-N includes fighters who sided with South Sudanese rebels in decades of civil war fuelled by ethnicity, oil and ideology that ended in a 2005 peace deal.
They were left in Sudan when that agreement paved the way to the secession of South Sudan in 2011.