A man has died after being hit by two cars in a horror incident on the NSW Central Coast overnight.

Emergency services were called to the Pacific Highway at Kanwal, near Wyong, around 7.30pm following reports a pedestrian had been struck.

Despite the efforts of first responders, the man could not be revived and died at the scene.

Police say he is still yet to be formally identified but is believed to be aged in his 50s.

The drivers of both vehicles involved, an 18-year-old man and a 21-year-old man, were uninjured and taken to hospital for mandatory testing.

A crime scene has been established, with officers investigating the circumstances surrounding the crash.

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