Lord Darling served as Chancellor under Prime Minister Gordon Brown from 2007 to 2010 and had to deal with the 2008 financial crisis, one of the most challenging periods in recent UK financial history.

His family reported the news of his death today which came after a short stay in hospital

He was an MP from 1987 until in 2015, representing constituents in the Edinburgh area.

He was first appointed as Chief Secretary to the Treasury by Prime Minister Tony Blair, a close ally, in 1997, and then moved to become Secretary of State for Work and Pensions in 1998.

He was ardent campaigner for Scotland to remain part of the United Kingdom and also supported the UK remaining an EU member during the EU Referendum.

In a statement today the Treasury said: "Today our thoughts are with the friends, family and former colleagues of Alistair Darling, Chancellor of the Exchequer from 2007 - 2010."

Former Chancellor George Osborne said: "The desperately sad news about Alistair Darling came while recording our podcast. He was my political opponent for 3 years, but I had huge admiration and respect for him, and he gave me in private great personal advice when i took over his job. A great British public servant."

Labour leader Keir Starmer said: "I am deeply saddened to learn of the passing of Alistair Darling. My heart goes out to his family, particularly Maggie, Calum and Anna, whom he loved so dearly."

Former Labour leader Gordon Brown said: "I am deeply saddened by the death of Alistair Darling. I, like many relied on his wisdom, calmness in a crisis and his humour. I send my deepest condolences to his loving wife Maggie and their children Calum and Anna. He will be missed by all who knew him."