Canterbury Police are yet to make an arrest after a vicious sexual assault in Lincoln.

A 48-year-old was walking home alone from the Selwyn Sounds event at the Lincoln Event Centre on Saturday the 4th.

Police believe between 6:30 and 7:10pm the victim walked between North Belt and West Belt where she was grabbed from behind, pushed off the road and attacked.

Last week officers spoke with a man in a cowboy hat who was in a sports field near the concert, before the attack.

Police say they've made no arrests so far but the investigation's ongoing.