Police have arrested a woman in Bedfordshire on suspicion of terrorism offences.
The M1's reopened after a crash near Milton Keynes that saw part of the motorway completely closed for more than seven hours.
The crash involving three lorries happened on the southbound carriageway between Junction 14 for Milton Keynes and 13 for Bedford at 3.30am on Thursday 12 April 2012.
The closures were completely lifted just after 11am.
Bedfordshire Police say a man was seriously injured in the crash.
Anyone with information about the crash is asked to contact Inpsector Matt Thompson in the Collision Investigation Unit on 01234 842439, text to 07786 200011 or telephone Crimestoppers, anonymously, on 0800 555 111.
Howard League for Penal Reform claims 10,000 fewer prison officers nationally - hundreds fewer across the East
"Disappointment" at force shown to be slow improve custody suites
Hospital aware of telephone problems for callers
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