The Lyttelton Tunnel (SH74), which links Christchurch with Lyttelton Port, has been closed until further notice according to Mainfreight.
An update on the company website this morning says the company learned the Lyttelton Tunnel is closing until further notice.
According to Stuff, Police and Civil Defence closed the tunnel. The reason for the closure is not yet known, but the tunnel has been shut down temporarily for checks following past large earthquakes.
Mainfreight says State Highway 1 is closed from Picton to Waipara, North of Christchurch, this covers 278.6km, including Kaikoura.
It says that State Highway 7 from Waitara to Springs Junction has also closed and the road to Hanmer Springs has been affected by a slip which has blocked both lanes on the eastern side of the Waiau Ferry Bridge.
