The spokesperson said the staff member was taken to A&E for minor injuries.
“Unfortunately, our teams too often find themselves in harm’s way when they’re just doing their jobs.”
Locals reported on Facebook seeing a man running from the store, armed with a weapon.
A local store worker told the Herald that emergency services had been at the scene but most had left by 12pm, although one police car remained.
A Hato Hone St John spokesperson said they sent one ambulance and one rapid response vehicle at 11.29am. They referred all other questions to the police.
The spokesperson said charges are being considered.
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