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Tornadoes and flooding hit Missouri, Texas, Arkansas and Mississippi

At least 13 people were killed

CNN —  

A string of deadly storms that ravaged some Southern states over the weekend could put millions more at risk as it moves north Monday.

At least 13 people were killed and dozens more injured as storms tore through Texas, Missouri, Arkansas, Tennessee and Mississippi over the weekend, spawning tornadoes and floods that left a trail of devastation.