At just before 8.05pm on Wednesday, 14 May, police were called to a disturbance in Black Road, Sunderland, involving several males and a passing motorist.
Police attended and a 21-year-old man was arrested for being drunk and disorderly.
A police officer was hurt during a struggle at the scene and was taken to Sunderland Royal Hospital to be checked over following the incident.
Anyone who was in the area at the time or anyone with any information which could help officers with their enquiries is asked to contact police on 101, quoting log number 1128 of 14/05/14. Alternatively people can call Crimestoppers on0800 555 111.