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Former Scots Tory leader Ruth Davidson has blundered after appearing to reveal the rough location of a UK spy chief’s Scottish home.

In an "extraordinary" gaffe, the MSP tweeted that MI6 chief Alex Younger’s house was in “line-of-sight” of a named bit of the country.

The tweet has since disappeared.

Angus Robertson, the former SNP deputy leader who was a member of Westminster’s intelligence and security committee, said:

“This is quite extraordinary and utterly reckless by Ruth Davidson. Why on earth she thought it was a good idea to publicise the home location of the head of MI6 is utterly beyond me.”

The blunder came after it was announced that Ken McCallum was the new head of domestic spy agency MI5.

A political commentator noted that McCallum is a Glaswegian, after which SNP MP Stewart McDonald stated that Younger studied in Scotland.

Davidson commented: “And splits his time between Edinburgh and London. His house is within line-of-sight of [named location]…”

SNP MP Stewart McDonald said: “Assuming the bit on his house is meant to be a joke? If not, I’m not sure the head of Mi6 would be overly excited to see the rough whereabouts of his address published.”