It was not clear on Sunday what caused Errico — who worked for the sanitation department for 19 years — to fall out of the truck.

A New York City Sanitation worker died on the job in Queens on Saturday evening, according to local officials. Richard Errico, a 19-year veteran of the department, appears to have been killed outside of the DSNY garage for District’s 11 and 13 in Douglaston, according to grisly photos from the scene.

A city Sanitation worker was fatally injured Saturday evening at a Department of Sanitation yard in Queens. Richard Errico was operating a sanitation truck at the yard on Douglaston Parkway near Grand Central Parkway,