Two Transportation Security Administration screeners have been fired for allegedly conspiring to grope some male passengers at Denver International Airport, according to reports.

An investigation by CBS4 in Denver and a follow-up report in The Denver Post found that one male screener would signal to a female co-worker when he saw an attractive man going through the screening area.

The female TSA agent would manipulate the machine to show the passenger being screened was a woman, which would then show up as an anomaly on the machine. That allowed the male screener to perform a pat-down search "of the passenger's front groin and buttocks area with the palms of his hands," according to a Denver police report.

Under questioning, the female screener admitted she had responded to her co-worker's signals at least 10 times, the Denver Post reported. A TSA supervisor discovered the problem after watching the screening area and presented the information to police in March, but prosecutors have not pursued the case because the groping victim hasn't been identified.

Full report by CBS4 in Denver and The Denver Post