The owner of building and mining company BGC, Len Buckeridge, has offered his condolences over the death of a Perth man buried alive in a sand silo at one of his company's sites.
The man was moving sand from a pile when it collapsed on him at BGC Precast Concrete in Naval Base about 12.15pm on Saturday.
Emergency services were unable to save the man.
Mr Buckeridge told the ABC the incident was an "unmitigated disaster" and was the first fatality at his group of companies in more than 50 years.
WorkSafe is now investigating the incident.