White House senior adviser Jared Kushner Jared Corey KushnerAbraham Accords: New hope for peace in Middle East Tenants in Kushner building file lawsuit alleging dangerous living conditions Trump hosts Israel, UAE, Bahrain for historic signing MORE raised concerns among administration officials by communicating with Saudi Crown Prince Mohammed bin Salman on private channels, including through the encrypted messaging service WhatsApp, CNN reported Wednesday.

Kushner's relationship with the Saudi leader reportedly raised concerns among national security staffers early on in his role but has come under increased scrutiny as U.S. officials monitor the findings of an investigation into the disappearance of Saudi journalist Jamal Khashoggi.

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Once concerns were raised about Kushner's close ties to the crown prince, Kushner reportedly told others within Trump's team about his conversations with the crown prince, according to CNN.

CNN reported that Kushner, who is also President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE's son-in-law, has worked "behind the scenes" to stay out of the spotlight and help handle the diplomatic fallout in the wake of Khashoggi's disappearance.

A White House spokesperson told The Hill in a statement that Kushner "has always meticulously followed protocols and collaborated with colleagues regarding the relationship with [Crown Prince Mohammed] and all of the other foreign officials with whom he interacts.”

Reports have indicated that Kushner and Crown Prince Mohammed have developed a close relationship. The president's son-in-law and senior adviser met with the crown prince most recently in June to discuss the Trump administration's Middle East peace plan.

Kushner spoke with Crown Prince Mohammed last week over the phone to ask for more information about Khashoggi's disappearance. National security adviser John Bolton was also on the call.

The crown prince's image as a reformer has come under fresh scrutiny following Khashoggi's disappearance. Turkish officials have said they believe Khashoggi was killed in the Saudi Consulate in Istanbul on orders from Saudi leadership. Khashoggi has been missing since Oct. 2 when he entered the consulate in Turkey.

Saudi Arabia has said it does not know what happened to Khashoggi, and the country is conducting a joint investigation into his disappearance with Turkish officials.

Trump on Wednesday said the U.S. has requested audio and video from Turkey related to Khashoggi's disappearance. The president again denied that he is providing cover to Saudi Arabia in connection with the Khashoggi case.