ABN Amro has paid £875m (€1.3bn) for the Priory Group, the UK's largest independent provider of mental healthcare, and handed Doughty Hanson, its private equity owners, a fivefold return on investment.

The Priory Group operates over 1,700 beds across a network of over 40 facilities in the UK and includes The Priory, the rehabilitation clinic favoured by celebrities.