WASHINGTON • Lawmakers Wednesday introduced a bipartisan bill that would raise penalties on employers who violate child labor laws, in the wake of reporting and federal investigations that found a growing number of companies employing underage migrant workers in dangerous factory settings.

The bill, introduced in the House of Representatives, follows a similar Democrat-led effort proposed this month in the Senate. The Department of Labor has also taken steps to increase enforcement of child labor violations and called on Congress to boost penalties.

Reuters in a series of stories published last year found migrant children, some as young as 12, were manufacturing car parts at suppliers to Korean auto giant Hyundai in Alabama and working in chicken processing plants in the state. This year, the New York Times reported on migrant kids at factories around the country making products for major U.S. brands.

The Labor Department has seen a nearly 70% increase in child labor violations since 2018, including in hazardous occupations, with 835 companies found to have violated child labor laws in the last fiscal year. The department recently fined a cleaning company for employing more than 100 kids on overnight shifts at meat processing facilities in eight states. Some had been injured by hazardous chemicals.

Under federal law, the maximum civil monetary penalty for a child labor violation is $15,138 per child. The House bill introduced by Democratic Rep. Hillary Scholten of Michigan and Republican Rep. Nancy Mace of South Carolina would increase the penalty to nearly 10 times that amount if passed, Scholten said.

The bill would ensure agencies “have the tools and the teeth to enforce these laws,” she said, citing coverage of the issue by Reuters and the New York Times as spurring her to action on this issue. The Times included reporting on kids working in Scholten’s home state of Michigan.

“Children should be in school,” she said, “not factories with dangerous working conditions.”

This month, six Democratic Senators led by U.S. Senator Brian Schatz, a Democrat from Hawaii, introduced a similar bill that would sharply increase civil fines and also impose stronger criminal penalties for repeat or willful violations.

Scholten said she is coordinating with other lawmakers in the Republican-controlled House and members of the Democrat-majority Senate, including Schatz, in hopes of moving child labor legislation forward.