Ukrainian President Volodymyr Zelenskyy is set to visit Turkey on Friday for talks with President Recep Tayyip Erdogan on the Black Sea grain deal and other issues.

The two leaders are expected to discuss ways to resume grain exports from Ukraine, which have been blocked by Russia's invasion.

They are also expected to talk about the possibility of Turkey mediating between Ukraine and Russia.

Zelenskyy is also expected to meet with Turkish businessmen during his visit.

The United Nations is also involved in efforts to broker a deal to resume grain exports from Ukraine.

The UN has said that it is working with Turkey and other countries to create a safe corridor for grain shipments

Russia has said that it is willing to allow grain exports from Ukraine, but it has demanded that sanctions on its own exports be lifted.

The West has rejected Russia's demands, saying that they are unacceptable.

The war in Ukraine has caused a global food crisis, as Ukraine is a major exporter of grain.

The UN has warned that the war could push up to 100 million people into hunger.