Police want to speak with him in connection with an assault that happened in Southsea
Police believe that Masterton was last seen in the Southsea area at 7.20am today (17 August).
Officers have carried out extensive enquiries to locate him and are now turning to the public for assistance.
He is described as:
5ft 5in tall
Large rose tattoo on his neck
If you have seen him, or know where he is, please do not approach him as can become violent, but call police on 999, quoting 44220333495.