Officers are investigating an incident on Bath Street on Sunday (26 July) at about 11.30am.
A man, walking a white boxer dog, became aggressive with people in the street. The man was shouting and swearing.
He is described as white and of stocky build, wearing a grey hooded top with ‘Replay’ on the front.
He also wore bright red shorts, a grey Under Armour cap and black trainers.
Police are appealing for any witnesses or any information which may help to identify the man.
Anyone with any information should contact PC 2898 on 101, quoting incident number 103 of 26 July.