Whistleblowers' claims of contractor overcharging for HS2 work investigated

The company building the high-speed rail line between London and Birmingham is investigating claims that one of its labour suppliers charged overinflated rates for staff.

- Mark Sweney

HS2 Ltd launched an investigation into a subcontractor providing workers to build the West Midlands section of the line, which has been beset with delays and cost overruns, amid allegations about its billing practices. It said Danny Sullivan Group remained suspended from new contracts while the investigation continued.

The Department for Transport (DfT) said it would ensure any claims of wrongdoing in HS2's supply chain were thoroughly investigated.

HS2's investigation began earlier this year and was first reported by the i website. It reported claims made by whistleblowers had alleged self-employed staff were being wrongly billed as salaried employees, leading to overpayments.

A spokesperson for Danny Sullivan Group has said it takes the allegations "extremely seriously" and is cooperating fully with the investigation.