Nearly 200 current and former staffers at the Federal Emergency Management Agency (FEMA) warned on Monday that recent changes the Trump Administration has made to the agency could lead to “not only another national catastrophe like Hurricane Katrina, but the effective dissolution of FEMA itself and the abandonment of the American people.”

About 150 FEMA employees signed a letter to Congress arguing that current agency leadership has eroded and hindered the ability to effectively manage emergencies.

The letter signed by 35 named employees said Homeland Security Secretary Kristi Noem and acting FEMA director David Richardson lack qualifications.