African leaders pressed Russian President Vladimir Putin on Friday to move ahead with their peace plan to end the Ukraine conflict and to renew a deal on the safe wartime export of Ukrainian grain that Moscow tore up last week.

While not directly critical of Russia, their interventions on the second day of a summit were more concerted and forceful than those that African countries have voiced until now.

They served as reminders of the depth of African concern at the consequences of the war, especially rising food prices.

“This war must end. And it can only end on the basis of justice and reason,” African Union Commission Chairman Moussa Faki Mahamat told Putin and African leaders in St Petersburg.

“The disruptions of energy and grain supplies must end immediately.

“The grain deal must be extended for the benefit of all the peoples of the world, Africans in particular,” Mahamat added.

Reuters reported in June that the African plan floats a series of possible steps to defuse the conflict including a Russian troop pull-back, removal of Russian tactical nuclear weapons from Belarus, suspension of an International Criminal Court arrest warrant against Putin, and sanctions relief.

Putin gave it a cool reception when African leaders presented it to him last month.

On Friday, he said Moscow respected the proposal and was carefully studying it, with Ukraine due to be discussed later at a working dinner.

Congo Republic President Denis Sassou Nguesso said the African initiative “deserves the closest attention”, calling “urgently” for peace.

Senegalese President Macky Sall called for “a de-escalation to help create calm”, while South African President Cyril Ramaphosa said he hoped that “constructive engagement and negotiation” could help end the conflict.

The stream of calls prompted Putin repeatedly to defend Russia’s position and place the blame on Ukraine and the West.

He said it was Kyiv that was refusing to negotiate under a decree passed shortly after he claimed last September to have annexed four Ukrainian regions that Russia partly controls.

Russia has long said it is open to talks but that these must take account of the “new realities” on ground.

Ukrainian President Volodymyr Zelenskiy has rejected the idea of a ceasefire now that would leave Russia in control of nearly a fifth of his country and give its forces time to regroup after 17 grinding months of war.

AU chair Azali Assoumani offered some support for Putin’s line, saying the Russian leader had shown his readiness to talk, and “now we have to convince the other side”.

At the summit, Egyptian President Abdel Fattah al-Sisi urged Russia to revive the Black Sea grain deal which, until Moscow refused to renew it last week, had allowed Ukraine to export grain from its ports in spite of the conflict.

Egypt is a big buyer of grain via the Black Sea route, and Sisi told the summit it was “essential to reach agreement” on reviving the deal.

Putin responded by arguing, as he has in the past, that rising world food prices were a consequence of Western policy mistakes long predating the Ukraine war.

He has repeatedly said Russia quit the agreement because the deal was not getting grain to the poorest countries and the West was not keeping its side of the bargain.