The FBI on Monday raided the office of Michael Cohen, President Donald Trump’s personal lawyer, obtaining a search warrant after referral from the office of Special Counsel Robert Mueller according to the New York Times.

Agents reportedly seized materials related to the $130,000 payment Cohen made to porn actress Stormy Daniels days before the 2016 election to prevent her from speaking out about the alleged affair she had with President Donald Trump. The FBI, the Times reported, seized “records related to several topics.”

Trump spoke out about the case for the first time last week, telling reporters on Thursday that he didn’t know about the payment. He referred questions to Cohen.