An important component of Syria’s opposition resumed discussions in the Saudi capital on Wednesday to decide whether to join peace talks in Geneva.
Spokesman for the High Negotiations Committee (HNC), Monzer Makhous, said the talks could last “perhaps all day”.
“There will be no comment until they finish,” he said.
United Nations-brokered talks, now scheduled to begin on Friday, have been delayed since Monday over who will represent the opposition.
The HNC began meeting on Tuesday to debate whether it would attend. The Riyadh-backed grouping insists it should be the sole opposition delegation.
But several opposition figures who do not belong to the body told AFP on Tuesday they had been invited to the talks.