Man charged after fatal multi-vehicle crash in Sydney's south-west

A man has been charged following a multi-vehicle crash in Sydney's south-west on Friday afternoon, which left one man dead.

Emergency services were called to the Old Hume Highway in Camden South around 1pm after four vehicles crashed on the Macarthur Bridge.

Police claim a small hatchback and a station wagon were travelling north along the Camden Bypass when they collided.

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The impact of the crash forced the hatchback into oncoming traffic and it was struck by two vehicles - a sedan then a 4WD - both of which were being driven south.

The man driving the hatchback, believed to be in his 30s, died at the scene, police said.

The drivers of the three other vehicles were taken to Camden Hospital for mandatory testing.

The driver of the station wagon, a 56-year-old man, was subsequently arrested by Crash Investigation Unit officers.

He was taken to Narellan Police Station where he was charged with dangerous driving occasioning death – drive manner dangerous, and negligent driving occasioning death.

The 56-year-old was given strict conditional bail and will appear in court next month.