Tunnelling completed in London’s vast Crossrail project

Britain's Prime Minister David Cameron (C) addresses workers and members of the media as he visits construction work on the Crossrail tunnel at Farringdon station in central London on June 4, 2015. - AFP

LONDON, June 4, 2015 (AFP) - Tunnelling work under London for the 14.8-billion (20 billion euros, $23 billion) Crossrail project was completed on Thursday in a major milestone for Europe’s biggest construction project.

Prime Minister David Cameron and London Mayor Boris Johnson attended an underground ceremony to mark the final breakthrough under London’s financial quarter after 26 miles (42 kilometres) of tunnelling.