In a phone call with Putin, Turkey’s president calls for a cease-fire.

President Recep Tayyip Erdogan of Turkey spoke with President Vladimir V. Putin of Russia on Thursday and called for a ceasefire in Ukraine, according to a statement from the Turkish leader’s office.

Mr Erdogan’s office said the two leaders spoke on the phone and discussed energy relations and the war in Ukraine.

“Calls for peace and negotiation must be backed by a unilateral ceasefire declaration and a fair vision of the solution,” Erdogan told his counterpart, according to a reading of the call released by his office.

The Turkish leader also spoke with Ukraine’s President Volodymyr Zelensky on Thursday and reiterated his country’s readiness to serve as a mediator between Ukraine and Russia, according to a separate statement from Erdogan’s office.

Since Russia launched its full-scale invasion of Ukraine in February, Turkey has positioned itself as a mediator between them. Preliminary peace talks between Russia and Ukraine were held in Turkey in the early days of the war, but they did not produce any concrete results, and the two countries are not close to holding further talks.

Erdogan has repeatedly offered to arrange a meeting between Zelensky and Putin, but neither side has accepted the offer. Still, Turkey helped broker a deal this summer involving Russia, Ukraine and the United Nations to allow the export of Ukrainian grain across the Black Sea. The grain deal was one of the topics of discussion on Thursday’s call with Erdogan, according to Mr. Zelensky. The wrote on Twitter that the two also discussed security cooperation and prisoner-of-war exchanges.

In the phone call with Putin on Thursday, Erdogan reminded the Russian leader that some previous negotiations had yielded positive results, such as the grain deal and prisoner-of-war exchanges, according to the statement by the Turkish presidency.

According to the Kremlin, Putin told Erdogan that he is open to negotiations “based on new territorial realities,” a thinly veiled reference to Russian-occupied Ukrainian lands. Ukraine has promised to continue fighting until all the lost territory is recovered.

NATO member Turkey has publicly opposed Russia’s invasion of Ukraine and provided drones to the Kyiv government. However, Turkey refused to join the Western economic sanctions against Russia. Instead, Mr. Erdogan’s government has increased its foreign trade with Russia since the start of the war, according to official government figures.

The Kremlin reading of the conversation said Putin and Erdogan discussed the strategic importance of new joint economic projects, including a plan to turn Turkey into a trading hub for Russian gas.

Anatoly Kurmanaev contributed reporting.