An identical twin, who is only distinguished from his brother by his missing front teeth, is wanted by police in relation to a family violence incident in Wellington.
Dennis Arthur Te Pania, 40, was known to be carrying weapons and so should not be approached, police said.
The incident took place at a Newtown home last week.
A female needed surgery for injuries she suffered in the attack, police said.
Te Pania was described as Maori, about 165cm tall and of thin build.