Speaking about today's timetable changes during the signalling upgrade work this summer, the Managing Director of East Midlands Trains said:
"Every effort has been made to deliver the best possible service forour passengers during Network Rail's re-signalling works whilstrecognising that some people will face considerable changes to their normal journey.
"We have invested around three years of careful planning to ensure we can keep people on the move throughout the work at Nottingham.
"Our advice for passengers is to be prepared and check in advance of travel at [eastmidlandstrains.co.uk/
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He demanded the money after placing a carrier bag containing what appeared to be a heavy object on the counter.
Closures will be in place on the Aston Expressway, Park Circus and Salford Circus. There will be some full weekend closures and diversions.
West Midlands Police have said specially trained police negotiators are speaking with the woman to try and talk her down to safety.