Police were called to reports of a fight involving three girls at Pacific Epping about 9.20pm.

Detectives allege a security guard was stabbed in the stomach by one of the girls after attempting to stop the fight.

Police believe the girl allegedly chased the other two teenagers and stabbed one of them several times before leaving the scene.

A 14-year-old girl and the security guard, a 19-year-old man from Lalor, were taken to hospital with serious injuries.

Pacific Epping General Manager Andrew Drivas said the security guard remained in hospital.

“Our focus is on supporting them in their recovery, while assisting Victoria Police with their investigation,” he said.

“The safety and wellbeing of all those who work in and visit our centre is our overriding priority.”

Investigators executed a search warrant at a home in the Whittlesea area this morning, where a 17-year-old girl was arrested.

She has been charged with intentionally causing serious injury, affray, assault with a weapon and unlawful assault.

She will face a children’s court at a later date.