Member of Somali transitional parliament held meeting in Somalia's war-torn capital Mogadishu on Saturday and alleged Mahiga is destroying the transitional federal government of Somalia.
The lawmakers signed motion against Augustan Mahiga and said they will discuss it in the first parliament meeting.
They appealed to Somali government members to boycott that meeting and Augustan Mahiga to leave interfering Somali government issues.
UN Special envoy said on Friday in a statement from his office that the planned High Level Consultative meeting to take place in Nairobi on 12 and 13 April. He called on all Somali authorities to participate.
"It is my obligation under the Djibouti agreement to facilitate dialogue among the Somali institutions and authorities. I urge all Somali leaders to demonstrate their commitment to advancing the peace process by taking part in this meeting", said Ambassador Mahiga in the statement on Friday.
Power struggle continues in the Horn of African nation as Prime Minister Mohamed Abdullahi Mohamed sides with President Sharif Ahmed whose rival and current parliament speaker Sharif Hassan Sheikh Aden is plotting an attempt to oust the president when his term comes to an end in the upcoming August.
Somalia was without functioning government since 1991.