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.
More top news
It has a wingspan of 79ft and can fly non-stop for more than 40 hours.
Full blown blue skies
David Lidington warned that Brussels institutions could be putting their own citizens at greater risk of attack.