Police used Taser stun guns to subdue a man who barricaded himself inside a house in Sydney's south after attacking a woman with a tomahawk.
Police were called to the house in Matson Crescent, Caringbah, just before midnight on Friday following reports of a domestic assault.
The man allegedly struck the woman over the head with a tomahawk, and when officers tried to speak to him, he threatened them with it and a hammer.
The State Protection Group and negotiators were called in but the siege ended just before 3am (AEDT) when the man allegedly left the house and threatened police with a stick.
Officers used Tasers and arrested him without further incident.
The woman was taken to Sutherland Hospital and treated for a head wound. She was reported to be in a stable condition.
A 37-year-old man was being questioned at Sutherland Police Station on Saturday morning.
