Police have confirmed that the unprovoked robbery and assault of an Edinburgh couple is being treated as a hate crime.Two men were attacked as they walked on Leith Street, by the St James Quarter, around 9.20pm on Friday July 30 by a group of men.Officers have now confirmed the horrific incident is being treated as a hate crime.We previously told how a witness described the attack as entirely unprovoked.Did you know you can keep up to date with the latest news by signing up to our daily