Fidan told Blinken that the root cause of the crisis in the region was the war in Gaza, and that an immediate ceasefire and unhindered access of humanitarian aid was needed in the enclave, the source said.

Fidan also urged countries with influence over Israel to send the "correct messages" to prevent further escalating regional tensions, the source added.

(Reporting by Tuvan Gumrukcu; Editing by Susan Fenton)