There are concerns for Mr Vaughan's welfare as he suffers from diabetes and requires regular insulin injections.

BBC: Kyle Vaughan

Mr Vaughan, of Blackwood, who has diabetes and needs regular insulin injections, was last seen alive on 30 December and is feared dead.

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Mr Vaughan, who has diabetes and needs regular insulin injections, was last seen in the late evening of 30 December in the Abercarn and Risca areas.

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Rock music fan Mr Vaughan, who has diabetes and needs regular insulin injections, is believed to have been last seen alive in the Abercarn and Risca areas of Caerphilly county late on 30 December.

BBC: Kyle Vaughan

Short-acting insulin is often called regular insulin.

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They must therefore inject themselves with insulin at regular intervals or else risk coma or sudden death.

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While the risk factors for Type 1 diabetes are not fully understood, insulin injections, regular exercise, and a healthy diet can help manage the disease.

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