A DEVON cat which purrs as loud as the sound of a Tube train could be named the world’s loudest.

Mother-of-two Tracy Westood’s pet Merlin’s purrs have been measured at an incredible 100 decibels. That means he is four times as loud as the average cat - and as loud as the sound of a car horn 25ft away.

Ms Westwood, 47, from Torquay, said: “When I’m on the phone I often have people asking me what on earth the noise is. But I guess I’m used to it. We’ve measured Merlin at peaks of 100dB but he can be louder than that.”                 –WO