A spate of sightings of a big cat in north Pembrokeshire are being investigated. Police and council officials say there have been numerous reports of the animal roaming the area. Farmer John Lewis has lost five lambs in mysterious circumstances over the past few weeks at his holding at Newport. He believes a big cat is responsible after finding the body of one of the lambs. I'm convinced there is something out there and I'm determined to find out what it is. "I've farmed sheep all my life as my father did before me but never have I seen anything as bad as this," he said. "Dogs and foxes always go for the neck. "But this time whatever attacked the sheep had pounced on it from behind. "The farmers around Newport are getting extremely worried. "I'm convinced there is something out there and I'm determined to find out what it is." Two other north Pembrokeshire residents have told Pembrokeshire council that they have spotted a larger than usual feline-type animal several times recently.