Presidents of Djibouti and Mauritania and former Nigerian President Olusegun Obasanjo, the African Union's special envoy, have tried to mediate the meeting, but it was unsuccessful.
It marks President Mohamud's second refusal to meet with Abiy Ahmed. In an earlier attempt, Kenyan President William Ruto sought to facilitate talks between the two leaders in Nairobi, which also failed.
