TelstraClear says it is slowly reconnecting customers to its cable service in Christchurch.
An outage hit TelstraClear's cable service in Christchurch in the early hours of this morning.
Around half the company's cable connections in the city, or about 13,000 customers, were affected, a spokeswoman told NBR.
"Customers are slowly gaining reconnection and we are focused on speeding that process up," the spokeswoman said.
"Once the service is back up to its full potential we'll fully investigate the issue and take steps to stop it from re-occuring."