Police are appealing for assistance to identify a male pedestrian who died near Tweed Heads today.

About 9.10am police and emergency services were called to the Pacific Highway at Sexton Hill, near Tweed Heads, after reports a pedestrian had been struck by a truck.

Inquiries into the incident continue, however, a number of witnesses have told police it appears the man stepped into the path of the north-bound semi-trailer.

As a result the man died at the scene.

The driver of the semi-trailer, a 36-year-old man from Hinchinbrook in Queensland, was uninjured in the incident. He was subjected to mandatory blood and urine testing at Tweed Heads Hospital.

The pedestrian has not been identified and police are appealing for anyone who may be able to assist with identifying him to contact them.

The man is described as being aged between 40 and 50 years old, of white/European appearance, with an obese build. At the time of the incident he was wearing black tracksuit pants, a black jumper and white joggers.

Anyone who witnessed the incident or who may be able to assist with the identity of the pedestrian is urged to contact Tweed Heads police or Crime Stoppers on 1800 333 000.