Palestinian leader Mahmoud Abbas voiced determination Friday to press ahead with efforts for a unity government.

Mahmoud Abbas (left), Recep Tayyib Erdogan (right)

Palestinian leader Mahmud Abbas voiced determination Friday to press ahead with efforts for a unity government after disagreements with Hamas snagged the process.

"We will make all efforts possible until the unity of our nation is achieved and a transitional government is established," Abbas said after talks with Turkish Prime Minister Recep Tayyip Erdogan marking the end of his four-day visit to Ankara.

On Sunday, a Palestinian official cited Abbas' trip to Turkey among the reasons for the indefinite postponement of his meeting with Hamas chief Khaled Meshaal, which had been scheduled for Tuesday in Cairo.

The two were to have finalised the formation of a unity government.

But other officials said later that disagreement over who should be the next Palestinian premier was holding up the creation of an interim government.

Erdogan offered "all support" to secure Palestinian unity and stressed that Ankara "does not want to see bloodshed between brothers in Palestine."

He promised to "resolutely" support a Palestinian bid for membership in the United Nations.

On Tuesday, the day Abbas arrived in Ankara, Meshaal was in Istanbul holding talks with Turkish Foreign Minister Ahmet Davutoglu on ways to overcome disagreements with Fatah.

Turkey will host a meeting of Palestinian ambassadors, scheduled for July 23-24 in Istanbul, Erdogan said.