Sean McGovern, 39, was reported missing from HMP Castle Huntly, Scotland's only open prison, at around 10pm on Sunday.

Police Scotland said McGovern has connections in the Edinburgh area, but members of the public are being warned not to approach him.

McGovern is around 5ft 8in, stocky, bald and has a scar on his right cheek.

He is believed to have been wearing a dark woollen hat, a dark long-sleeve jacket or jumper, light-coloured trousers and light-coloured trainers, possibly grey.

If you have any information as to McGovern's whereabouts, call the police on 101 or Crimestoppers anonymously on 0800 555 111.

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HMP Castle Huntly is in Perth and Kinross.

On the Scottish Prison Service's (SPS) website, it reads: "Following a robust risk management process and a period in closed conditions, prisoners can progress to Castle Huntly where the emphasis is on careful preparation for release.

"Activity focuses on enhanced personal responsibility, job readiness and positive citizenship with the aim of reducing the risk of reoffending and contributing to safer communities."