New Orleans marks Katrina anniversary
US President Barack Obama has paid tribute to the people of New Orleans, five years to the day after Hurricane Katrina destroyed large parts of the city.
More than 1,800 people died when Katrina hit the Gulf coast in 2005.
The storm displaced hundreds of thousands of people, some of whom have still not returned.
Ceremonies in New Orleans to mark the anniversary include the tolling of the bells at St Louis Cathedral. Andy Gallacher reports.
29 Aug 2010