A lawsuit out of New Mexico accuses several tech companies of illegally monitoring the location and activity of children to sell that data to advertisers.

Filed in the U.S. District Court for the District of New Mexico by state Attorney General Hector Balderas, the lawsuit alleges that several apps “clearly and indisputably designed for children” made by Lithuanian company Tiny Lab Productions are collecting and exfiltrating user data to third parties to provide children-targeted advertisements without parental consent.

Such activity, the complaint alleges, is in violation of the Children's Online Privacy Protection Act, which poses restrictions on collecting data on children younger than 13, and Tiny Lab isn't the only company accused of violating it. Also being sued are Google Inc. and its advertising company AdMob, along with Twitter Inc. and its own advertising arm, MoPub. Also listed as defendants are mobile marketing and advertising outfits AerServ, AppLovin, ironSource USA Inc. and InMobi PTE.