A man has died after being hit by a truck this afternoon on the M4.
Just after 12.20pm, emergency services were called to the M4, near the Mulgoa Road on-ramp.
The pedestrian is understood to have been struck by an eastbound truck, and he died at the scene.
The man behind the wheel of the truck has been taken to Nepean Hospital, suffering shock.
He is set to undergo mandatory blood and urine tests.
Police are currently investigating the circumstances leading to the incident.