Police were called to Union Street at 5:53pm. The area remains cordoned off. Witnesses are urged to call 101 as soon as possible.
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Thousands of people around the country turned out to see the aircraft, including at RAF Cosford.
For those waiting to catch a glimpse of the Vulcan before it is retired for good, tomorrow might be the last chance.
Local volunteers covered the Shropshire Ironbridge with the rags today as a part of an art installation.