Four current and former Transportation Security Administration screeners have been arrested and face charges of taking bribes and looking the other way while suitcases filled with cocaine, methamphetamine or marijuana passed through X-ray machines at Los Angeles International Airport, federal authorities announced Wednesday.

The TSA screeners, who were arrested Tuesday night and Wednesday morning, allegedly received up to $2,400 in cash bribes in exchange for allowing large drug shipments to pass through checkpoints in what the U.S. attorney in Los Angeles called a “significant breakdown” of security.

In addition to the two current and two former screeners, prosecutors also indicted two alleged drug couriers and a third who allegedly tried to smuggle 11 pounds of cocaine but was nabbed when he went through the wrong security checkpoint.

The TSA employees “placed greed above the nation’s security needs,” Andre Birotte Jr., U.S. attorney for the Central District of California, said in a statement.

The 40-page indictment outlines five alleged smuggling incidents over a six-month period last year. In one incident, screeners schemed to allow for about eight pounds of methamphetamine to pass through security, then went to an airport restroom where he was handed $600, the second half of the payment for that delivery, according to prosecutors.