Detective Senior Sergeant Megan Goldie said the guard approached one of the youths who then stabbed the female security guard with what is believed to be a knife.
“The injury has penetrated the security guard’s vest and into her torso.”
Goldie said the guard did not suffer serious injuries but this would have been “extremely frightening”.
“We are providing her with support.
“The violent behaviour on display last night was totally unacceptable, directed toward someone who was just doing their job.
“Charges are now being considered and inquiries remain ongoing.”
A Woolworths spokesman confirmed the incident involved a security guard working for LynnMall.
A spokesman for LynnMall’s owner Kiwi Property told the Herald “we are aware of an altercation of Veronica St ... on Sunday.
“A LynnMall security guard was providing assistance, however, sustained a minor knife wound as a result.
“The security guard received prompt medical treatment and is receiving support. The individuals involved in the incident have been trespassed from the premises and the matter is now with the police.”
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