US Secretary of State John Kerry will pay a brief visit to Turkey on Sunday, following a US-brokered Zionist apology for a deadly flotilla raid in 2010.

US Secretary of State John Kerry will pay a brief visit to Turkey on Sunday, following a US-brokered Zionist apology for a deadly flotilla raid in 2010, a Turkish foreign ministry diplomat said.

"He is expected to be in Istanbul on Sunday for a short visit," the diplomat told Agence France Presse on Wednesday, speaking on condition of anonymity.

The Syrian crisis, as well as reconciliation efforts between rival Palestinian factions are expected to top the agenda of talks between Kerry and Turkey's leaders.

The top US diplomat's latest trip comes after the Zionist government apologized to Turkey on March 23 for the deaths of nine Turkish activists in a botched pre-dawn raid by Zionist commandos, ending a near three-year rift in a breakthrough brokered by US President Barack Obama.

However, Turkish Prime Minister Recep Tayyip Erdogan has suggested the full normalization of ties including the exchange of ambassadors depends on the Jewish state.

Kerry last visited Turkey on March 1 amid a row over comments by Erdogan branding Zionism a "crime against humanity", remarks the Turkish premier later said had been misunderstood.

In Ankara, Kerry expressed Washington's hopes to see the two old allies reconcile and work together.

Erdogan is expected to pay a visit to the United States for talks with Obama on May 16, according to local media.