New information establishes that the ties between Paul Manafort, former campaign manager for Donald Trump, and a Kremlin-linked billionaire are greater than previously reported.

Documents establish that Manafort carried out about $60 million in business with Oleg Deripaska over the past decade. Of this, $26 million was in the form of a loan from Deripaska’s company to Cyprus-registered entities linked to Manafort.

Pursuing the Trump-Russia inquiry, Special Counsel Robert Mueller has subpoenaed Manafort and his spokesman Jason Maloni for documents and testimony.

In July 2016, while he was Trump’s campaign manager, Manafort offered Deripaska private briefings — a month after an initial meeting between high-level Trump advisors and Russian envoys and three weeks before Trump invited the Russians to hack Hillary Clinton’s e-mails.

See TrumpWatch, Day 244: Trump’s Campaign Manager Manafort Offered Briefing to Kremlin-Linked Billionaire

The Manafort e-mail is among tens of thousands of documents that have been turned over to congressional investigators and Special Counsel Robert Mueller’s in the Trump-Russia inquiry.

Maloni initially said in a statement to NBC News, “Mr. Manafort is not indebted to former clients today, nor was he at the time he began working for the Trump campaign.” He later removed the sentence in a revised declaration:

Recent news reports indicate Mr. Manafort was under surveillance before he joined the campaign and after he left the campaign. He has called for the US Government to release any intercepts involving him and non-Americans in hopes of finally putting an end to these wild conspiracy theories. Mr. Manafort did not collude with the Russian government.

In addition to the $26 million transfer, Deripaska’s firm provided $7 million to another Cyprus-based, Manafort-linked company. Loans were then made from the Cyprus entities to a third company connected to Manafort. Funds from this were used for purchase of property, against which Manafort’s daughter obtained a loan of more than $1 million.

Deripaska also invested another $26 million in a private equity fund earmarked for a Ukrainian telecommunications company. A legal filing says the money was moved through yet another Cypriot company, with Manafort asking for the investments structured as loans “to avoid the unnecessary occasioning of Cyprus taxation”.

Lawyers who specialize in money laundering said the loans appeared unusual and merited further investigation.

“Money launderers frequently will disguise payments as loans,” said Stefan Cassella, a former federal prosecutor. “You can call it a loan, you can call it Mary Jane. If there’s no intent to repay it, then it’s not really a loan. It’s just a payment.”