Police attended the scene in an attempt to find a location where they had heard there had been a disturbance. This turned out to be 'common assault,' according to a GMP spokesperson. (Image: Joe Regent)The force said: "The incident was a common assault where the offender made off. There were two police vehicles on Derby Street, including a van and a car. 'Physical' common assault is the application of physical force to a person, whether or not that force causes any damage.