Days of unrelenting heavy rain and storms that killed at least 18 people worsened flooding as some rivers rose to near-record levels Monday and inundated towns across an already saturated U.S. South and parts of the Midwest.

Heavy rains cause flooding in the U.S. South and Midwest

Days of unrelenting heavy rain and storms that killed at least 18 people worsened flooding as some rivers rose to near-record levels Monday and inundated towns across an already saturated U.S. South and parts of the Midwest.