A total of 20 people have been convicted over their involvement in a £19m drugs network with links to Scotland.

The group received jail sentences totalling more than 160 years following a UK-wide investigation by Welsh police.

The network stretched from Pembrokeshire to Aberdeen and included organised crime groups based in Merseyside, Manchester and Wales.

Three members of the Liverpool syndicate were given sentences totalling 32 years for conspiracy to supply drugs in Scotland and Wales.

They included gang leader Ian Edwards, who was given a 14-year sentence at Swansea Crown Court on Monday.

Stephen Mudd was sentenced to 11 years and Andrew Curphey will serve seven years.

Welsh officers examined more than 3000 pieces of evidence and seized 2.7kg of high-purity cocaine during the investigation, which was codenamed Operation Phobos.

Dyfed-Powys Police detective chief inspector Huw Davies said: "Dyfed-Powys Police, with support from other forces and partner agencies, in particular the Crown Prosecution Service, has disrupted a significant criminal network that was operating throughout the UK.

"This is a tremendous result not only for Dyfed-Powys Police but for the communities we serve."

Jonathan Bushell, head of the Crown Prosecution Service's Welsh complex casework unit, said: "‎Each defendant in this case had a distinct role within the group and each therefore bears responsibility for bringing misery to the communities they supplied.

"Together they preyed on those in the grip of addiction, who often turn to othe‎r types of crime to support their habit."