Two public school districts on Monday sued Juul Labs Inc, accusing the company of endangering their students and draining their resources by marketing its addictive e-cigarettes to teenagers.

The St. Charles, Missouri, and Olathe, Kansas, public school systems appeared to be the first school districts to join the rising wave of litigation against Juul.

As a result of “youth-targeted product design and marketing, and years of misstatements and omissions regarding its products, Juul succeeded in addicting a generation of youth to nicotine,” the St. Charles district said in its lawsuit, which was filed in federal court in St. Louis.