Scotland’s Auditor General is considering a new inquiry into two late and over-budget ferries after a documentary raised concerns about their procurement.

The Glen Sannox and as-yet-unnamed Hull 802 are due to be delivered in 2023 and early 2024 at a potential cost of more than £300 million – three times the initial £97m contract.

Being built at the Ferguson Marine shipyard in Port Glasgow, which is owned by the Scottish Government, the vessels have encountered numerous issues, leading to questions about the process and the procurement.

The Scottish Government said the revelations were concerning, with the Scottish Tories saying the police should be called in to investigate.

In a letter to the public audit committee on Friday, Auditor General Stephen Boyle said he was considering expanding previous audit work done on the ships, given the documentary.

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