Clinton Foundation officials denied an unidentified hacker's claim Tuesday that the charity's servers had been breached and internal documents were stolen.

"Once again, we still have no evidence Clinton Foundation systems were breached and have not been notified by law enforcement of an issue," said a foundation official who declined to be named. "None of the folders or files shown are from the Clinton Foundation."

A hacker known only as "Guccifer 2.0" claimed Tuesday to have infiltrated servers operated by the Clinton Foundation.

"Many of you have been waiting for this, some even asked me to do it," the hacker wrote on his blog. "So, this is the moment. I hacked the Clinton Foundation server and downloaded hundreds of thousands of docs and donors' databases."

Guccifer 2.0, who styled himself after convicted Romanian hacker Marcel Lehel Lazar, said Hillary Clinton and her team did not "bother about the information security" on the Clinton Foundation system he claimed to have breached.

The alleged foundation documents include what appears to be a list of Wall Street donations to members of the House Financial Services Committee, as well as another document that appears to list banks' contributions to House members' political action committees.

Guccifer 2.0, who allegedly breached the Democratic National Committee servers in July and gave a batch of stolen emails to WikiLeaks, is suspected of having Russian ties.

The unidentified hacker has also claimed to possess a volume of records swiped from the Democratic Congressional Campaign Committee. The records posted Tuesday resembled documents that would have originated from the DCCC.