New York’s banking and insurance regulator has asked Deutsche Bank and two New York lenders for information related to their dealings with Jared Kushner, President Donald Trump’s son-in-law and a White House senior adviser, according to a person familiar with the investigation, but who is not authorized to speak publicly on the matter.

The New York Department of Financial Services last week sent letters to Deutsche Bank, Signature Bank and New York Community Bank seeking information between Kushner, his family and Kushner Cos., which develops real estate and is also a lender, according to the source.