Another setback for Lebanon and efforts to form a new government.
First the Saudis pulled out of mediation talks and now the Turkish and Qatari foreign ministers have also suspended their efforts.
Two days of discussions between caretaker Prime Minister Saad al-Hariri and rival Hezbollah Secretary-General Sayyed Nasrallah in Beirut could not find enough common political ground between the parties.
Ten Hezbollah cabinet ministers resigned recently, effectively withdrawing their support for the Prime Minister and bringing an end to constitutional stability.
The assassination of former Prime Minister Rafik al-Hariri in 2005 is at the centre of the dispute, with differences over an investigation by the UN Special Tribunal for Lebanon into the murder.