Update: 4:29pm: The Terrace Tunnel is now open in both directions. However traffic remains severely congested throughout the city as a result of the closure. Please continue to expect significant delays.
Update 4:16pm: Police said the incident had now been resolved and a person had been taken to hospital in a critical condition.
Update 4:08pm: The Terrace Tunnel Northbound lanes are now open. Southbound remains closed. Continue to expect significant delays throughout the city. Reports indicate it is taking more than 40 minutes to reach Newtown from the CBD.
SH1 TERRACE TUNNEL – POLICE INCIDENT – 3:15PM
Due to a police incident, the Terrace Tunnel is CLOSED in both directions. Expect delays throughout the city – Road users are urged to delay travel if possible
SH1 TERRACE TUNNEL – POLICE INCIDENT – 3:40PM
Due to the police incident on #SH1, there are significant DELAYS. The Terrace Tunnel remains CLOSED and road users are advised to delay their travel if possible. ^CR pic.twitter.com/7802onQGFy
— NZTA Wellington (@NZTAWgtn) February 5, 2019
Editor: When more information is available this post will be updated
The NZHerald is reporting additional details: https://www.nzherald.co.nz/nz/news/article.cfm?c_id=1&objectid=12201136