Turkey, which has harshly criticised Israel for its attacks on Gaza and backed measures to have it tried for genocide at the World Court, has repeatedly called for a ceasefire.

Unlike its Western allies and some Gulf nations, NATO member Turkey does not view Hamas, the Palestinian militant group which runs Gaza and on Oct. 7 carried out an attack inside Israel that prompted the Israeli campaign, as a terrorist organisation.

Fidan told a G20 foreign ministers meeting in Rio de Janeiro on Wednesday that the "savagery" in Gaza must be stopped, and discussed steps to achieve an urgent ceasefire and get more aid into the enclave during talks with counterparts from the United States, Germany, and Egypt, the source said.

"Steps that can be taken to achieve a full ceasefire as soon as possible were discussed," during talks between Fidan and U.S. Secretary of State Antony Blinken, the source said, adding Fidan also discussed "concrete steps" to stop the fighting with German Foreign Minister Annalena Baerbock.

"The fact that a decision on a ceasefire did not come out of the U.N. Security Council once again, has shown that reform is a must," Fidan told a session at the G20 meeting, according to one of his aides, referring to a third U.S. veto on a ceasefire call at the 15-member body.

Ankara says the U.N. Security Council must be reformed to be more inclusive and representative of the world.

"The stance shown by Brazilian President Lula (Luiz Inacio Lula da Silva) is admirable," the aide cited Fidan as saying, in reference to comments by Lula in which he likened the war in Gaza to the Nazi genocide during World War Two and which caused a diplomatic spat.

(Reporting by Tuvan Gumrukcu; Editing by Raju Gopalakrishnan)