POLICE have uncovered an alleged £100,000 cannabis plantation in a house in Swansea following tip-offs from members of the public.
Officers said they found more than 400 plants growing over three floors of the Mount Pleasant property when they swooped.
Police have thanked the public for their help — and said the seizure had made South Wales a safer place.
The officers executed the warrant at a house in Rosehill Terrace at 4.20pm on Monday.
Sergeant Mike Francis of Swansea Central police station said: "This significant seizure was discovered as a direct result of information supplied to us by members of the public, and I would like to thank those people who came forward.
"The streets of Swansea and South Wales are now going to be that much safer as this haul of drugs will not be inflicting harm and misery in our communities."
Police said they also recovered a quantity of equipment from the house which was used in the cultivation of the Class B drug.
A 37-year-old Vietnamese man arrested on suspicion of cultivating cannabis was last night being held in custody.
Sergeant Francis appealed for anyone with information or suspicions about cannabis being grown in their communities to come forward.
And he said there were tell-tale signs that a property might be being used to grow the drug which people could look out for.
He said: "It has been well documented in the past that there have been tell-tale signs of possible cannabis plantations, which I would like to reiterate.
"These signs could include any unusual behaviour and infrequent callers to premises, together with blackened out windows and excessive lighting."
Police are urging anyone with information about cannabis, or any other drug, to contact officers.
Can you help? Call police on 101 or Crimestoppers on 0800 555111.