New Orleans is braced for the impact of Hurricane Isaac, which is expected to make landfall later.

Although it is a much less powerful storm, the hurricane will hit the United States city exactly seven years after it was devastated by Hurricane Katrina.

Thousands of people have fled the city in anticipation of impact. However, many have decided to stay, boarding up property as they wait it out.

Floodgates have been closed across the Louisiana city ahead of the storm, which is bringing winds of up to 80 miles per hour.

This is just a third of the wind speeds recorded during Katrina.

Isaac killed at least 24 people in Haiti and the Dominican Republic.

Storm warnings are also in place in parts of Florida, Texas and Alabama.

Check the National Hurricane Centre website for the latest information.