A second day of deadly tornadoes has seen 21 people die across the southern and central US, including one person in Elvis Presley's birthplace in Mississippi.
The city of Tupelo, home to 35,000 people, suffered power outages and extensive damage to homes and businesses.
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Turning mild for the middle of the week.
Impact, which represents Irish-based pilots, agreed has to meet Ryanair's management ahead of the planned strike on Wednesday.
Four-time Olympic champion Sir Mo Farah upset the odds to be named 2017 Sports Personality of the Year