A train in New Jersey has derailed causing hazardous chemicals to spill, including vinyl chloride.
Short-term exposure to high amounts of that chemical can lead to dizziness, drowsiness and headaches, according to the Environmental Protection Agency.
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Demi Pearson, 15, her brother Brandon, aged eight, seven-year-old sister Lacie, and sister Lia, three, all died.
Irish ex-pats from all over the world are returning home to cast their votes in the upcoming referendum.
Amanda Holden has given an emotional interview to ITV Tonight in order to pay tribute to the NHS, as it approaches its 70th anniversary.