This post was updated at 1:53 p.m. ET
Emergency officials were searching Monday for survivors after tornadoes tore through parts of Arkansas and Oklahoma overnight, killing at least 14 people and leveling entire neighborhoods.
"We don't have a count on injuries or missing. We're trying to get a handle on the missing part," Arkansas Gov. Mike Beebe said at a news conference Monday. "Just looking at the damage, this may be one of the strongest we have seen."