President Zelenskyy visited the G7 and Arab League summits to make Ukraine’s case.
A long-awaited report has strongly criticised the FBI's handling of its investigation into alleged ties between Russia and the 2016 Trump campaign.
The US ambassador to South Africa has accused the country of supplying weapons to Russia despite its professed neutrality in the war in Ukraine.
Ukraine has accused Russia of attacking the besieged city of Bakhmut with phosphorus munitions.
Prigozhin said they would leave on May 10 because of heavy losses and inadequate ammunition supplies.
Russia has launched a series of missiles at Ukrainian cities in the second pre-dawn attack in three days.
