Reps. Rashida Tlaib and Debbie Dingell, who both represent Michigan, said they have both “consistently heard” concerns over policies to prevent the spread of COVID-19 not being followed.
She also mentioned Dingell in the post and added: “We don’t back down.”
A letter asking for the investigation was sent to the Deputy Assistant Secretary of Labor with the Occupational Safety and Health Administration, Loren Sweatt, The Detroit News reports.
It added that issues over safety “present unacceptable risks for workers” while also suggesting the situation could “exacerbate our larger public health crisis.”
Michigan has suffered more than 48,000 coronavirus cases, with more than 4,700 deaths, according to its government figures, while 22,686 who have had the virus there have recovered.
The state has seen some of the strictest measures in the U.S. implemented amid the crisis, prompting protests which drew support from President Donald Trump, though has begun to look to reopening.
Its governor, Gretchen Whitmer, released an “MI Safe Start” plan last week, looking to get the economy in the state running again.
Announcing this, Whitmer said: “I am working closely with partners in business, labor, and education to determine the best way to move forward each day. All of us know the importance of getting people back to work and the economy moving again.”