The first incident took place on Tuesday 3 November between 10 and 10.15pm at Guildhall Square. Two men were threatened with a knife by a group of men who then stole a designer coat and air pods from the first man and money from the second man.
In the second incident, at 10.50pm on the same evening a man has been threatened with a knife by a group of six men on Commercial Road but nothing was stolen.