KEY POINTS
  • OSHA inspectors on Monday visited Amazon sites in New York, Colorado and Idaho with the widening of a probe into potential workplace hazards, according to a document viewed by CNBC.
  • Last month, OSHA and federal prosecutors began investigating workplace safety at Amazon warehouses.
  • OSHA officials in July inspected three other Amazon facilities as part of the investigation.

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A worker assembles a box for delivery at the Amazon fulfillment center in Baltimore, Maryland, U.S., April 30, 2019.

Federal officials are sharpening their focus on Amazon's workplace safety hazards.

Investigators from the Occupational Safety and Health Administration, which is part of the Labor Department, visited Amazon sites near Albany, New York, Denver and Boise, Idaho, on Monday, according to a document viewed by CNBC. 

In this article