Another woman has been sexually attacked in Nelson, the second in a week and the third in two months.
Police are praising the victim in the latest incident, who they say fought off her attacker on Thursday night as she walked along the city's riverbank.
The woman, in her 40s, was walking under a bridge on the Maitai River Walkway when she was grabbed from behind in what police believe was a sexually motivated attack.
She was dragged under the bridge but fought off her attacker and ran away, sustaining multiple bruises and scrapes.
Nelson Bays area commander, Inspector Ross Lienert, praised the woman's bravery.
"She's been subjected to a number of punches, but she's managed to land a few of her own and escape from the attacker. She's done extremely well under the circumstances."
It is the third sexual attack on women in Nelson in two months.
At the weekend an 18-year-old was raped after she left a bar and on New Year's Day a 62-year-old woman was attacked and sexually assaulted as she worked in community gardens. A 22-year-old man has been charged over the latter attack.
The offender in the latest attack is described as Caucasian, about 170cm tall, of medium build with short hair and is believed to be in his 20s.
He was wearing torn dark blue baggy jeans and a grey long-sleeved hoodie with dark writing on the front. The hood was worn up and had a light coloured lining and a small tear.