OSHA is investigating three New Jersey companies after a tape measure fell some 50 stories and fatally struck a man in the head. According to NJ.com:

OSHA has opened an investigation of Jangho Curtain Wall Company of Piscataway, Specialty Products & Insulation Company, which has offices in Camden and Hillside, and AJD Construction of Leonardo, U.S. Department of Labor regional spokeswoman Leni Uddyback-Fortson confirmed.

Jangho Curtain Wall Company was doing scaffolding work at the construction site at 70-90 Columbus Drive where Gary Anderson, 58, of Somerdale, was fatally struck in the Nov. 3 freak accident while making a drywall delivery, Uddyback-Fortson said.

According to a police report, Anderson, an independent contractor, was not wearing a hard hat when the object fell on his head, although he had one in his truck. The tape measure fell off a worker's tool belt, police said.

Read More about the incident.

As construction industry safety expert Matt Murphy noted in a recent interview with Concrete Construction, being "struck by" is one of the four biggest causes of workplace fatalities.

Read more from Murphy.