Two people are trapped after a bus and a car collided in Christchurch at about 8.50pm.
Police say the road is closed at Shag Rock Corner, Moncks Bay, Christchurch and motorists are asked to avoid Main Road, Moncks Bay in Clifton.
Two people have serious injuries, police say.
Emergency services are at the scene and the road will be closed while staff assist the injured.
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