Monday, a man in New Zealand stabbed several people at a supermarket, wounding five people, according to authorities.

Three out of the five people are in critical condition.

Police confirmed that a suspect had been arrested and taken into custody following the incident that occurred at a Countdown supermarket in the city of Dunedin.

Two supermarket staff members were among those injured.

“We are shocked and devastated by the events in our Dunedin Central Store this afternoon,” Countdown said in a statement.

“Our priority right now is our injured team members and caring for our wider team in the wake of this extremely traumatic event. We are deeply upset that customers who tried to help our team members were also injured.”

Prime Minister Jacinda Ardern said the motivation for the attack had not been established, however, police did not have any evidence that it was domestic terrorism.

“Needless to say that such an attack is hugely concerning, and I do want to acknowledge the really early reports of courageous acts by bystanders who have taken action in order to protect those around them,” Ardern said.

“Our thoughts are with all those affected by this attack.”

Ardern said five people had been taken to Dunedin Hospital following the incident.

Health authorities said that three of the injured were admitted to the Intensive Care Unit (ICU).

This is a developing story.