A sign is seen promoting the US-Africa Leaders Summit is seen July 31, 2014 outside the US Department of State (L) where President Obama will host African Leaders August 4-6,2014 in Washington, DC.
President Barack Obama and dozens of African leaders are holding talks on Wednesday on regional security issues and business investments on the continent.
The meetings will close out Obama's unprecedented three-day U.S.-Africa summit in Washington. He hosted the leaders for a dinner at the White House Tuesday night.
Much of the summit has focused on Africa's economic potential and new financial commitments from U.S. businesses. But Wednesday's talks will delve into some of the problems still plaguing the continent, including terrorism and extremism.
Obama will close the summit with a late-afternoon news conference. First lady Michelle Obama is also hosting a spouses' event with former first lady Laura Bush.