A serious crash involving a rolled van on State Highway 94 between Milford and Te Anau has left multiple injured and roads blocked.

Emergency services are responding to the crash near Deer Flat which was reported just before 12 pm.

“Initial information from the scene is that a van has rolled and several people have been injured,” said a police spokesperson.

Hato Hone St John was notified of the incident at 11.57 pm.

They said the scene is still active so are unable to provide any further updates at this stage.

Significant traffic is already backing up on both sides of the crash scene.

The road is blocked in both directions and police expect it will remain so for some time.

Police are advising motorists to delay any travel between Milford and Te Anau.

More to come.