Angelina Jolie and Brad Pitt are reportedly planning to adopt a child orphaned by Hurricane Katrina.

The pair, who already have three adopted tots, have been working tirelessly to rehouse people affected by the storm that hit the U.s gulf coast in 2005.

And Pitt has dedicated time and money to the Make it Right organisation, which is rebuilding a destroyed section of New Orleans.

American magazine Star claims the couple has fallen in love with a girl whose parents were killed in the Katrina devastation, and they want to add her to their expanding family.

The couple already has three adopted children, Maddox, six, Pax, four and Zahara, three, and a natural baby, Shiloh, 19 months.

A source tells the tabloid, "Brad met a little girl and fell completely in love. He and Angie had already decide that their next child would be a daughter. They were originally going to adopt a girl from Africa, but now Brad is sure this child is the one."