A new tunnel segment manufacturing plant has begun full operations in London.
The facility will be pouring the first batch of 250,000 concrete segments that will line 42km (26 miles) of Crossrail tunnels.
Located at Old Oak Common, the facility will employ about 60 people at its peak, including the first of 15 trainees and apprentices.
They are among the first group of apprentices and trainees to receive training at the new Tunnelling and Underground Construction Academy (TUCA).
The segment production has begun ahead of the start of Crossrail tunnelling next month, with the first tunnel boring machine (TBM) currently being assembled at Westbourne Park.