Walmart says it is pledging $1 million for the recovery from the tornado that devastated Moore.
The Bentonville, Ark.-based company said Tuesday that it will make donations of cash and materials equal to $1 million.
Walmart is also sending truckloads of food, water and other basic items to serve as immediate aid.
The world's largest retailer says no customers or employees were injured in its two stores in Moore. But the company says some workers' homes were destroyed and that it is still checking on the needs of its employees.
Two museums in downtown Little Rock are lowering their admission rates during this year's Riverfest.
The Clinton Presidential Center and the Museum of Discovery are offering $5 admission during operating hours for the festival over the Memorial Day weekend.
The Clinton Center is to be open Friday through May 27, which is Memorial Day. The Discovery Museum is to be closed Friday but it is planning special programs while it is open the rest of the holiday weekend.
Riverfest draws about 250,000 people to downtown Little Rock each year.