Family members say 55-year-old Russell Harron, of Billerica, was a father of three.

Harron’s employer, M. DiStasio Excavation Contractors, out of North Reading, Massachusetts, released a statement Friday calling what happened “a tragic accident on the job that resulted in” Harron’s death.

“Russell Harron was a hard-working and diligent employee at M. DiStasio Excavation Contractors,” President Michael DiStasio said. “Our hearts are broken. Russell’s family has our deepest sympathy and heartfelt condolences on this unbearable loss.”

DiStasio said the company is cooperating fully with authorities in their investigation.