The Syrian delegation at a Non-Aligned Movement summit walked out during a speech on Thursday by Egyptian President Mohamed Morsi, who described the Syrian government as "oppressive", Al Jazeera television reported.
The Arabic satellite channel did not give further details in its brief headline and it was not immediately clear if the delegation returned after Morsi´s speech finished.
Egypt´s Mursi: Syrian government "oppressive"
Egyptian President Mohamed Mursi criticised the government of Syrian President Bashar al-Assad in a speech on Thursday at a summit of developing countries being held in Iran, a steadfast ally of Assad.
"Now there is a revolution in Syria against the oppressive regime," Morsi said in Tehran before world leaders of the Non-Aligned Movement.
Egyptian President Mohamed Morsi said it was an "ethical duty" to support the Syrian people against the "oppressive regime" in Damascus.
"Our solidarity with the struggle of the Syrian people against an oppressive regime that has lost its legitimacy is an ethical duty as it is a political and strategic necessity," Morsi said in a speech at a Non-Aligned Movement summit in Tehran.
"We all have to announce our full solidarity with the struggle of those seeking freedom and justice in Syria, and translate this sympathy into a clear political vision that supports a peaceful transition to a democratic system of rule that reflects the demands of the Syrian people for freedom."