UN Secretary-General Antonio Guterres has described the deals allowing the safe Black Sea export of food and fertilizer from Ukrainian ports and facilitating Russia's own such exports as playing an "indispensable role" in global food security.  

"The secretary-general and his team remain fully committed to building on the progress already made and are in constant contact with a wide range of stakeholders in this regard," UN spokesman Farhan Haq told reporters.  

"The secretary-general calls on all concerned to prioritise global food security," Mr Haq said.  

The Black Sea grain deal, which has seen Moscow allow Kyiv to continue exporting grain via the Black Sea despite the war, is due to expire on 17 July.