Wales Online: "It was like a flushing noise that I heard first."Then we could hear a machine running, and we started to record all over the house, picking up the sounds of chains, a motorbike starting, and people screaming."Determined to find out where the sound is from, Alan dug two 1.5 metre channels into the walls of his basement and furnished them with recording equipment.He then claimed he heard "a woman screaming, sexual sounds, dogs barking, a printing press running, a motorbike, a car horn honking and what sounds like a police siren".The couple strongly believe “serious criminal gang” residing underground and had reported to Dyfed-Powys Police.Officers were sent to the address in November 2018, but they did not go inside.
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