The Senate Intelligence Committee is probing potential investments in President Trump’s real-estate empire by people close to Russian President Vladimir Putin, according to a new report Wednesday.

The committee is also looking for evidence of possible money laundering, a committee aide told NBC News.

Officials recently asked the Treasury Department’s Financial Crimes Enforcement Network for any evidence relevant to the committee’s investigation into whether Trump campaign aides colluded with Russia to interfere in the November election, NBC said.

In 2015, FinCEN imposed a $10 million penalty on the Trump Taj Mahal Casino Resort in Atlantic City, N.J., for “willful and related violations of the Bank Secrecy Act.”

At the time, Trump no longer owned the gambling den, which was bought in 2014 by billionaire financier and Trump advisor Carl Icahn, who shut it down in October.

The White House said Trump was confident his campaign would be cleared of any wrongdoing involving Russia and the election.

“There’s a process, and that process is moving forward, and we’re confident that once it’s complete everyone will again see that there is no ‘there’ there when it comes to alleged collusion,” spokesman Michael Short

On Tuesday, Trump unexpectedly fired FBI Director James Comey amid the agency’s investigation into the Trump campaign’s ties to Russia.