A kidnap victim was tortured with searing hot knives and told he would be killed unless his father paid his captors £18,000.

David Morrin was abducted from his family home in Netherburn, South Lanarkshire, and held hostage for almost 24 hours.

The captors called the victim's father, David Morrin Snr, several times and eventually put his son on the line in a bid to extort money.

Terrified David Jnr begged: "Dad, do this or they will kill me."

David Snr agreed to stump up more than £3000 before armed police swooped on the flat in Possil, Glasgow, where his boy was being held.

It eventually led to the arrests of thugs Gary Roxburgh and Zak Bennett.

The pair, both 26, are now behind bars after they admitted a charge of assault and abduction at the High Court in Glasgow.

The indictment stated Roxburgh also extorted money from David Morrin Snr.

The duo will learn their fate in the new year.