UPDATE: A spokeswoman for the 18th Annual South Metro Development Conference said on Tuesday that Gov. Brian Kemp is expected to speak at the event.

Kemp would be the first sitting governor to participate in the event, the spokeswoman said.

Details on the governor’s visit and what he might talk about are incomplete. Story is developing.

ORIGINAL STORY: South metro Atlanta leaders will celebrate economic growth south of Interstate 20 at the 18th Annual South Metro Development Conference.

Scheduled for 7 a.m. Feb. 20 at the Georgia International Conference Center in College Park, the meeting brings together leaders from Clayton, Henry, Fayette, Coweta, Fulton and Douglas counties as well as Atlanta to discuss economic development. 

"This year's agenda includes an update on Hartsfield-Jackson International Airport's expansion and development, the Aerotropolis Atlanta Alliance, as well as the impact of new innovations in autonomous vehicles and building 'Smart Cities,'" leaders said in a release.

Leaders expected to attend include new College Park Mayor Bianca Motley Broom, ATL Transit Authority Director Scott Haggard, Kennesaw State University economist Roger Tutterow and MARTA CEO Jeff Parker.

More than 600 attendees are expected.