(AP) — President Barack Obama has declared a major disaster in Oklahoma as the state recovers from a massive tornado  that ripped through the Oklahoma City suburbs Monday, killing dozens and flattening entire neighborhoods.

Obama has ordered federal aid to supplement state and local recovery efforts. Individuals and business owners affected by the disaster may apply for federal grants for temporary housing and home repairs, low-cost loans to cover uninsured property losses and other programs.

The president promised federal assistance in a phone conversation earlier Monday with Oklahoma Gov. Mary Fallin. The Federal Emergency Management Agency has sent a special team to Oklahoma’s emergency operations center to help out and dispatch resources.