The Transportation Security Administration abruptly reversed course on suspending its PreCheck service Sunday — saying it will remain operational despite a statement from Homeland Security Secretary Kristi Noem.

A big mess at Chicago airports after the Department of Homeland Security closed TSA PreCheck and Global Entry on Sunday, only to reopen them hours later.

Starting Sunday at 6 a.m. Eastern time, travelers enrolled in the Global Entry program will no longer use dedicated Global Entry lanes, the DHS said in a statement.