Justice Secretary Chris Grayling has said he plans to fight "for every penny" that the Ministry of Justice was allegedly overcharged for electronic tagging services.
Earlier he said that a government-commissioned audit suggested that the incorrect bills ran into the "low tens of millions" and that he would take "all necessary steps" to get a refund for taxpayers.
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Downpours keeping us on our toes today
The M20 in Kent has been closed in both directions after a pedestrian bridge allegedly collapsed on the motorway on Saturday.
The AA have warned of traffic jams and urged people to carry extra water in their vehicles because of the warm weather.