NEW ORLEANS (AP) — The chaos wrought by Superstorm Sandy delivered a gut-wrenching dose of deja vu for survivors of Hurricane Katrina.

But now those people are reaching into their wallets and cupboards to help victims of Sandy in the northeast, seven years after Katrina destroyed their own neighborhoods, killed more than 1,800 people and caused some $108 billion in damage.

Church groups, nonprofits, City Hall and individuals in New Orleans and along the Mississippi Gulf Coast have begun sending care packages, donating money and staging volunteers for the cleanup and recovery efforts.

Joe Robert is one of those volunteers driven to help after seeing images of destruction. He knows too well what those people will face. His voice cracking with emotion, Robert says seeing Sandy's aftermath makes him "relive all the memories, all the heartache."