A woman is in hospital with head injuries after a serious assault in Hastings.
Police are looking for witnesses to the attack on Roberts Street just before 11am on Sunday.
A man was seen assaulting a woman before threatening bystanders with a gun.
Police believed the suspect was known to the victim.
"The victim is being treated in hospital for head injuries and police are looking to provide her with support," Senior Sergeant Kevin Stewart said.
They said multiple people witnessed the assault, and some may have taken pictures or filmed the attack.
Police are urging any witnesses to contact them, using reference number P060269218.