U.N. Syria envoy Staffan de Mistura listens during a press conference after his meeting with the U.N. Security Council, Thursday, Oct. 30, 2014.

Military and political opposition leaders in Syria’s largest city of Aleppo refused on Sunday a temporary truce plan proposed by United Nations Envoy Staffan de Mistura, Agence France-Presse reported.

“We refuse to meet with Mr Staffan de Mistura if it is not on the basis of a comprehensive solution to Syria’s drama through the exit of (President) Bashar al-Assad and his chief of staff, and the prosecution of war criminals,” Aleppo’s revolutionary council said in a statement.

Separately, Syria’s exiled opposition praised France on Sunday for maintaining its “exemplary” opposition to President Bashar al-Assad after a group of French lawmakers made a controversial visit to Damascus this week.

“The position of France has always been exemplary, and your country has consistently held to the side of the Syrian people against any attempt to rehabilitate the regime in Damascus under false pretenses,” the group’s leader, Khaled Khoja, wrote in a letter to the French government.

His letter followed an unofficial trip by French lawmakers to the Syrian capital last week, during which they met with Assad and other senior officials.

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