Deloitte & Touche, the UK accounting firm, has been forced to clarify its assessment of a merger between Vallehermoso, the Spanish real estate company, and construction firm Grupo Sacyr.
The accounting group was told by the Comisión Nacional del Mercado de Valores (CNMV), the Spanish securities regulator, to clear up some queries over its independent view of the €1.4bn ($1.5bn) deal.