NEW ORLEANS (AP) — Federal agents descended Monday on a nonprofit hired by the city to run a home cleanup program after Hurricane Katrina and were photographed carting off boxes, days after a U.S. attorney announced an investigation involving the organization.

Recent local media reports have scrutinized ties between the former director of the New Orleans Affordable Homeownership Corp. and some top-earning contractors and raised questions over whether some of the cleanup work billed to the city was actually performed.