NEW CASTLE, Del. (AP) — The Scooter Store, a Texas-based company that supplies power wheelchairs and scooters to people with limited mobility, has filed for Chapter 11 bankruptcy protection.

Monday’s bankruptcy filing in Delaware comes after federal agents raided the company’s South Texas headquarters earlier this year, and amid congressional scrutiny of whether TV ads by The Scooter Store and a rival company target people who don’t need scooters, leading to hundreds of millions of dollars in unnecessary Medicare spending.