EXCLUSIVE: The director of the Federal Air Marshal Service is resigning after being investigated for his role in an alleged operation to acquire guns for officials’ personal use, FoxNews.com has learned.

Director Robert Bray’s home was raided in December in connection with the ongoing probe. Law enforcement and congressional sources told FoxNews.com that Bray’s recently announced resignation, which is effective in June, is directly related to the investigation.

Bray allegedly is among several officials who were obtaining weapons through this operation.

The Department of Homeland Security inspector general probe — which also is believed to involve the Bureau of Alcohol, Tobacco, Firearms and Explosives — stems from whistleblower accusations involving federal Air Marshal supervisor Danny Poulos.

He is accused of using the agency’s federal firearms license and his relationship with gun manufacturer Sig Sauer to obtain discounted and free guns. He then provided them to high-up agency officials for their personal use, according to whistleblower documents obtained by FoxNews.com and interviews with multiple officials with knowledge of the ongoing probe.

Read more at FOX News Politics