State Highway 1 closed after serious crash involving caravan near Wellsford

CARTERTON, NEW ZEALAND - JANUARY 07:  Police stand guard at the cordon near the accident site on January 7, 2012 in Carterton, New Zealand. Emergency services attended a hot air balloon crash that has killed 11 people in the early hours of Saturday near the Wairarapa plains town of Carterton. The balloon burst into flames and crashed killing all aboard.  (Photo by Marty Melville/Getty Images)
Photo credit: Getty

Police and emergency services were called to the caravan crash just south of Wellsford shortly after 1pm on Monday.

One woman has been seriously injured and is being airlifted to hospital.

Motorists are being asked to avoid the area where possible, as it is expected that the road will remain closed for some time.

Police advise drivers to use State Highway 16 as an alternative route.

Newshub.