A 16-year-old boy arrested in Northamptonshire last year has admitted possessing explosive chemicals and bomb-making books and diagrams.
The teenager, who cannot be named for legal reasons, pleaded guilty to two terror charges and another offence at a hearing at Birmingham Magistrates' Court.
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Fog patches and extensive low cloud at first will steadily lift and clear.
A murky start with mist and fog then gradually clearing, although some eastern coastal districts may remain cloudier.
Isolated showers should die out through the evening to leave a dry remainder of the night.