Two people have died in a serious crash at Whittingham, south of Singleton.
Emergency services were called to the New England Highway just before 4:30 this afternoon.
Police say a utility and small sedan collided, before the sedan crashed head-on with a semi trailer.
Both people inside the sedan died at the scene.
The drivers of the utility and truck will undergo mandatory blood and urine testing.
Motorists are urged to avoid the area, with the highway closed in both directions.
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