Businesses in the region have welcomed the Chancellor's decision to postpone a planned 3 pence rise in fuel duty. It had been due to go up in August, but will now be frozen until the end of the year.
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An estimated 90 employees, deemed potential victims, have now been taken to a reception centre where they will be spoken to by officers.
The tunnels were closed in 2013 for restoration that was expected to cost £4 million but actually, cost quadruple that amount.
25-year-old Aaron Armstrong died just weeks after his girlfriend took her own life. His family say they struggled to access support.