An adviser to the First Minister has left the Scottish Government's council on Europe to take on a similar job for Boris Johnson.

David Frost will also leave his job as chief executive of the Scotch Whisky Association (SWA) to work for the foreign secretary from next month.

Before joining the SWA in 2014, Frost served as a diplomat for the UK Government in a number of roles for 25 years, including as Britain's ambassador to Denmark.

From November 4 he will advise Johnson, who backed leaving the European Union in June's referendum.

A spokesman for Mr Frost said: "David Frost, who has resigned as chief executive of the SWA, stood down from his role on the Standing Council on Europe on accepting his appointment to a role in the Foreign Office to avoid any possible conflict of interest."

A Scottish Government spokesman said: "We thank David for his work while on the Standing Council on Europe and wish him well in his new role."

When announcing the launch of the advisory body, the First Minister said: "The council draws on a breadth and wealth of knowledge and experience, comprising specialists with backgrounds in business, finance, economics, European and diplomatic matters, and it will encompass a range of political and constitutional opinions.

"Members will consider the impact of proposed changes to the UK's relationship with the EU on Scottish interests and advise Ministers throughout our negotiations on the best way to secure Scottish interests and objectives."

The SWA has previously warned that leaving the European Union could result in high tariffs on whisky.

Frost called on the UK Government to "bring clarity to the transition to Brexit as soon as possible".