INTERNATIONAL NEWS - A committee of Congress has called on the White House to provide details of any aides who have used private emails for official business.
The investigation comes after Donald Trump's son-in-law Jared Kushner admitted doing so, and the New York Times reported that five other aides also used private email accounts.
Mr Kushner, a senior adviser, has been asked to preserve all his emails.
His wife, Mr Trump's daughter Ivanka, is also said to have a private account.
The demand for more information came in a letter from the House Committee on Oversight and Government Reform, signed by Republican Trey Gowdy and Democrat Elija Cummings.
Addressed to White House Counsel Donald McGahn, it says: "Have you or any non-career official at the White House ever used a personal email account to conduct official business?
