NEW ORLEANS- New Orleans Mayor Mitch Landrieu is visiting Atlanta and Houston to mark the approaching 10th anniversary of Hurricane Katrina.
    
Landrieu's office says the trips are being made to thank those cities for welcoming evacuees from the 2005 storm.
    
He'll also be encouraging those who stayed to return to New Orleans. City Hall says thousands of former New Orleans residents still live in the Atlanta and Houston areas.
    
On Wednesday, Landrieu will join Atlanta's mayor for a news conference; and Atlanta-based religious leaders for a Wednesday evening worship service.
    
Similar events are set for Thursday in Houston.