Envoys from the United States and the European Union met officials from the interim government in Egypt and the Muslim Brotherhood on Saturday.
The BBC reports they were trying to find a peaceful solution to end the political crisis.
More than 100 supporters of president Mohammed Morsi have been killed since he was overthrown by the military on 3 July.
Police have been ordered to clear sit-ins in Cairo at Nahda Square and outside the Rabaa al-Adawiya mosque where Morsi supporters have been calling for his reinstatement.
The BBC reports US deputy secretary of state William Burns and European Union envoy Bernardino Leon met the Muslim Brotherhood first and then Foreign Minister Nabil Fahmy in Cairo. Few official details have been given.