Rotorua Lakes Council compliance solutions manager Neven Hill said contractors would need to dig down to enable them to shut down the bore and with not enough light left today, the decision has been made to do that work at first light tomorrow.
"Once the bore has been shut down contractors and staff will have a better idea about why it blew this afternoon.
"The area has been cordoned off for safety reasons and we will have security guards there overnight to ensure public safety."