Emergency services attending a two-car crash on State Highway 8 near Lake Tekapo.
Emergency services are at the scene of a two-car crash near Lake Tekapo township.
A Fire and Emergency New Zealand spokeswoman said two crews, one from Twizel and one from Tekapo have responded.
She said the crash was reported about 9am on State Highway 8, near Lake Tekapo Airport.
Police said the road is blocked and extensive delays are expected.
Drivers are asked to delay travel and the alternate route is through Waimate to Kurow.