An unidentified D.C. police officer has come under investigation by the District of Columbia Police Department’s Internal Affairs Division for allegedly making a threat against First Lady Michelle Obama, reports The Washington Post.

The comments against Mrs. Obama were allegedly made Wednesday morning while several police officers were discussing threats against President Barack Obama and his wife over breakfast. According to reports, that’s when the suspected officer allegedly said that he would shoot Mrs. Obama and used his phone to show what type of gun he would use to shoot her. He may also have used a phone application that makes the sound of gunfire. The comment was overheard by another officer and then reported to a superior. Police are still trying to figure out exactly what was said.

“We received an allegation that inappropriate comments were made. We are currently investigating the nature of those comments,” said D.C. police spokeswoman Gwendolyn Crump. Crump declined to divulge further information about the officer though The Post confirms he is a 17-year department veteran who had been assigned to a unit that provides a motor escort for the White House. The officer has been placed on paid desk duty while the investigation takes place.

The Secret Service is reportedly not commenting on the matter at this time, but they did say that they “will conduct appropriate follow-up.”

The officer’s penalty for threats against the first lady could include criminal prosecution if investigators believe his comment constituted an actual threat. He could also face administrative discipline for conduct unbecoming.