Tunnelling on the multi-billion pound Crossrail project has ground to a halt just months after it started. After an accident with a hopper that collapsed, the giant boring machines which are digging the tunnels for the underground railway have had to be switched off. Simon Harris reports.
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A lamp in the tower which houses Big Ben is to be switched off for the first time in more than 70 years.
Sir Bruce entertained audiences for more than seven decades.
Work in the tower will also pause over the bank holiday weekend.