STERLING, Mass.—A worker was killed Thursday morning after a portion of a rock ledge collapsed onto an excavator with the worker inside, burying it under rocks and boulders at a quarry site in Massachusetts.
Firefighters and other rescue agencies responded to the scene. Crews used camera equipment to assess the scene of the collapse and found no signs of life, according to fire officials in Sterling, about 40 miles (64 kilometers) west of Boston.





