By Louise Parry
BBC News, Buckinghamshire
A major construction company has stopped trading, citing "rapidly escalating contract losses".
Buckingham Group, which is based in Buckinghamshire, has been redeveloping football stadiums including Anfield in Liverpool and Sixfields at Northampton.
It has also been involved in earthworks on the HS2 and East-West Rail lines.
The employee-owned company has filed a notice to appoint administrators, but stressed it was not currently in administration.
Buckingham Group had a turnover of £665m in 2021 and said despite "very strong commercial performance across most of the business", it had suffered "deep losses and interim cash deficits on three major stadium and arena contracts, and a substantial earthworks contract in Coventry".