The White House has denied that President Donald Trump's financial records had been subpoenaed from Deutsche Bank by the special prosecutor examining allegations of Russian election meddling.
United States investigators are said to be demanding information on dealings linked to Mr Trump as part of an investigation into alleged Russian influence in the U.S. presidential election, according to Handelsblatt and Reuters.
A person close to the matter said Deutsche Bank received the subpoena several weeks ago to provide information on certain money and credit transactions.
Mr Mueller is investigating alleged Russian attempts to influence the election, and potential collusion by Trump aides.
"The latest news supports our view that Mr. Mueller is too conflicted to investigate the FBI and should step down in favor of someone more credible", the newspaper said. It was the first time Mr. Trump had said anything other than Mr. Flynn was sacked for lying to Mr. Pence.
In June, Deutsche Bank already rejected demands by US House Democrats to provide details of Trump's finances, saying sharing client data would be illegal unless it received a formal request to do so. That figure includes a $170-million loan Trump took out to finish a hotel in Washington. Trump's former national security adviser, Michael Flynn, pleaded guilty Friday to lying to Federal Bureau of Investigation agents, becoming the fourth associate of the president ensnared by Mueller's probe.
But until Mueller opts to bring his investigation into the public eye, we're unlikely to know for sure whether he's made a decision to cast his net so broadly. "Then Justice claimed that providing House investigators with classified material could hurt security or sources".
Many media outlets included the denial from Trump's attorney in their reports, but the idea of his bank being subpoenaed for his financial records makes for far juicier headlines.
As Mueller's investigation unfolds, Trump has gone on the offensive.