Turkish President Recep Tayyip Erdogan told parliament that “shipments will continue from 1200 (9am GMT) today as planned”, after a call between the Russian and Turkish defence ministers.
Russia’s defence ministry confirmed that it was resuming participation, saying it had received “sufficient” guarantees from Kyiv on demilitarising the maritime corridor.
“Russia considers that the received guarantees are at the moment sufficient and is resuming the implementation of the agreement,” the ministry said.
The deal, overseen by the Joint Coordination Centre in Istanbul, has allowed more than 9.7 million metric tonnes of grain and other foodstuffs to leave Ukrainian ports.
This has brought much-needed relief to a global food crisis triggered by Russia’s campaign in Ukraine, a major grain exporter.
Under the terms of the deal, which was agreed in July, ships moving to and from Ukraine are inspected by a joint team of Russian, Turkish, Ukrainian and UN officials.
Last Saturday, Russia had said that it was temporarily pulling out, accusing Ukraine of misusing the safe shipping corridor to launch a drone attack on its Black Sea fleet.
Some shipments in and out of Ukraine continued after that, but the UN on Tuesday said there would be no movements on Wednesday.