A man who used the dark web to sell the powerful synthetic opioid fentanyl to dozens of people, including four in the UK who have since died, has been jailed for eight years.

Kyle Enos, 25, from Newport in south Wales pleaded guilty in August to buying and selling significant quantities of the drug - a highly toxic synthetic opioid - to outlets in the UK, USA and Canada.

Sentencing Enos, Judge Eleri Rees, said the drug "is 25 times more powerful than heroin as is evidenced by the deaths of at least four young people who were your customers.

"None of those deaths can be attributed to Fentanyl supplied by you, but it is evidence of how dangerous a drug it is".

In August Enos admitted importing, supplying and exporting fentanyl.