In this image from video provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy speaks from Kyiv, Ukraine, Sunday, April 10, 2022. AP
Sall, the current AU chairman, tweeted that he and Zelenksyy had discussed over the phone the economic impact of the war in Ukraine and "the need to favor dialogue for a negotiated outcome to the conflict".
The Ukrainian president also asked to address the AU, Sall said.
The request comes amid a divided African response to Russia's invasion of Ukraine.
For example, 58 countries abstained from an April 7 vote in the United Nations General Assembly that suspended Russia from the UN Human Rights Council over its invasion.
Africa accounted for 24 of the abstaining countries, which included Senegal. Nine other African countries voted in favour of the resolution, and 9 voted against.