Investigators were working to piece together how the man died after a passerby made the grisly discovery near a Central Coast shopping centre about 4.30am on February 20.

Emergency services were called to Wyong Road at Tuggerah, near Westfield, after a witness reported human legs were hanging from the clothing donation bin.

Police said the man was "wedged inside the chute" of the clothing bin.

He had died at the scene and his body was removed.

Police set up a crime scene and officers are investigating the circumstances surrounding the man's death.

Blue tarpaulins were set up while emergency services worked on Tuesday morning and the row of charity bins were taped off.

Westfield security guards were seen in the area.

The row of bins had been removed from the location by midday.

The police investigation continues but ACM understands the man's death is not being treated as suspicious.

Anyone with information has been urged to contact police or Crime Stoppers on 1800 333 000 or through the online reporting portal.