Staff at a library in North Shore's Browns Bay have been left "completely shaken" after a man wearing a face mask and armed with a fake gun walked in.
Police say no one was injured but staff and others in the library were completely shaken by what occurred.
"A man walked into the library with a face mask on and what is believed to be a toy gun," a police spokesperson said.
"No one was injured in the incident but staff and others in the library were completely shaken by what occurred.