The Ethiopian peace talks in South Africa which had been widely expected to end on Sunday will continue into Monday.
It was still not clear how well the discussions between the warring parties, the Ethiopian federal government and the Tigray government were progressing.
The organisers have maintained an almost radio silence about the talks, making it very difficult to assess progress.
The substantive talks began in Pretoria on Wednesday after an opening ceremony on Tuesday. The mediation team is led by African Union special envoy Olusegun Obasanjo. The former Nigerian president is supported by former Kenyan president Uhuru Kenyatta and former South African deputy president Phumzile Mlambo-Ngcuka.