Richard Whitehead has won Britain's second gold medal of the day in the men's 200m T42 final in front of a capacity crowd at London's Olympic Stadium.
He finished in a new world record time of 24:38 seconds.
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Dr Michio Hirano denied having any financial interest in the experimental treatment considered for the baby.
The measures are set to be included in a court-mandated clean air strategy the Government is due to publish on Wednesday.
Low pressure in the Atlantic brings a spell of wet and windy weather on Wednesday.