Former US President George HW Bush's fever has worsened with doctors putting him on a liquids-only diet, a spokesman for his hospital in Texas has confirmed.
But Jim McGrath said doctors were "cautiously optimistic" about the course of treatment he is on.
Mr McGrath, who was quoted by the Associated Press, said doctors still do not know what is causing the 88-year-old's "stubborn" fever, despite treating it with Tylenol.
Mr Bush was brought to the Houston hospital for the bronchitis-like cough on November 23.
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Temperatures will be on the warm side tomorrow as much of the country looks forward to a fine bright start to the day.
Welsh international rugby league player Danny Jones has died today after collapsing during a match.
One medical worker told ITV News it was like 'entering your worst nightmare' as they tried to help look after the injured.