A teenager motorcycle rider has died after being hit by a learner driver on NSW’s south coast.

Emergency crews rushed to the intersection of Shellharbour Rd and Woodlands Rd in Barrack Heights, Shellharbour, after calls of a serious crash about 4.30pm on Saturday.

Police said a 16-year-old boy on his L-plates was driving a Toyota SUV when the car collided with a motorcycle, causing the rider to be thrown from the bike.

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The rider, an 18-year-old man, was treated by paramedics at the scene for life-threatening injuries and taken to Wollongong Hospital in a critical condition.

The rider sadly could not be saved and was declared dead a short time later.

The learner driver and his supervisor were both uninjured and taken to shellharbour Hospital for mandatory testing.

A crime scene was established and an investigation into the circumstances surrounding the crash is underway, police said.

Anyone with information, CCTV or dashcam is asked to contact police.