The former personnel chief of the Federal Emergency Management Agency (FEMA) is being investigated after accusations that he traded sex for jobs at the agency and other sexual harassment claims, according to CNN.

Corey Coleman, who resigned his post at FEMA a few weeks ago, has been accused by witnesses of pressuring women into sex and demoting them if they denied his advances, a seven-month internal investigation revealed, multiple outlets report.

According to The Washington Post, which first reported the story, Coleman brought women to the agency to have sex with some of the male employees and created a toxic work environment.

“Results of a recent internal investigation concerning allegations of sexual misconduct against the former Chief Component Human Capital Officer leave me no choice but to take decisive action to address lapses in professional responsibility, including requesting further investigation by the DHS Office of the Inspector General,” FEMA Administrator Brock Long said in a statement to CNN. “These allegations are deeply disturbing and harassment of any kind will not be tolerated at FEMA.”

Coleman was hired as a deputy in the agency’s HR office  in 2011 and faced his first accusation of impropriety in 2015.

“What we uncovered was a systemic problem going back years,” Long told The Washington Post. “The biggest problem I may solve here may be the eradication of this cancer. How many complaints were not heard? I’ve got to make sure we have a safe working environment for our employees.”

Coleman resigned on June 18 before a scheduled interview with investigators, the Post reports.