Police responded to reports of a stabbing at a dairy on New Windsor Rd just after 10.40am.

“A number of people in the store at the time intervened and managed to apprehend and restrain the offender,” Auckland City CIB Detective Inspector Glenn Baldwin said.

“They have also provided assistance to the injured man as well as a secondary victim, a woman, who also sustained injuries.”

Both have been transported to Auckland Hospital, with the man in critical condition and the woman stable.

A 24-year-old man has been taken into custody.

Police remain at the scene.

A person told NZME he had been called and told his brother had been stabbed.

A block of shops including the dairy have been cordoned off, while Auckland Transport said New Windsor Rd between Maioro St and Mulgan St had been closed.

Police investigate incident at Auckland dairy

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A person was critically hurt in the incident at the New Windsor Dairy. (Source: 1News)

Ratana Leng, who owns the nearby New Windsor Bakehouse, saw two police officers dragging a man out of the dairy around 11.30am before making an arrest.