A spokesman for Crossrail said today:
“Crossrail regards the safety of all those working on the project as paramount and requires all workers to adhere to strict safety requirements including an obligation to raise any concerns.
We fully investigated Unite’s specific claims and found no evidence to support them. Crossrail has written to Unite on several occasions to update them on industry and health safety issues but has yet to receive a response.”
More top news
London mayor Sadiq Khan is "extremely worried" about knife crime as Met Police revealed there was an increase in stabbings in the capital.
Camden police have responded to reports of an unexploded World War Two bomb in Hampstead high Street.
AFC Wimbledon face Plymouth in the League Two play-off final at Wembley, with a place in League One at stake.