The collapse happened at a construction project on the company's campus at 1000 Garber Road in Guilford Township on Tuesday, August 30, around 2:15 p.m., according to dispatch.
No injuries have been reported as of 4:30 p.m., according to dispatch.
York, Cumberland, and Washington counties' emergency services have been called to the scene, according to Greater Chambersburg Area Paid Fire Fighters Association, IAFF Local 1813.
Someone from the company was original believed to be trapped and was reported missing but the company says; “All Martin’s employees are accounted for at this time. None of our employees were in the construction area when the walls collapsed."
Crews on the scene later clarified that a contractor working on the construction was "unaccounted for" and dogs are being used to help locate them.
"Wohlsen, the general contractor, is still working on securing the site and making sure all their people are safe.” according to Julie Martin, the company's social media manager.
This is a developing story, so follow Daily Voice for updates.
Click here to follow Daily Voice Bristol and receive free news updates.