The Federal Emergency Management Agency has issued warning for the people who received food kits as part of a disaster relief effort in Kentucky and Arkansas. Authorities asked them to inspect the kits in their possession and immediately dispose of packets of peanut butter contaminated with salmonella linked to a nationwide outbreak. Officials believe that 6,000 to 7,000 people remained in shelters, primarily in western Kentucky.

FEMA said though the kits do not all contain the same main course; they do contain packets of peanut butter.

Jay Blanton, spokesman for Kentucky Gov. Steve Beshear, said: "We just received this information from FEMA. Tonight, out of an abundance of caution, we are in the process of finding alternative sources of food for people in shelters. The Kentucky National Guard is starting to notify people who've already received the (meal kits) or might be getting one."