Washington (CNN) There are no detailed records of five personal meetings President Donald Trump has had with Russian President Vladimir Putin, The Washington Post reported Saturday, citing US officials.

Trump has gone to what the Post described as "extraordinary lengths" to keep the specifics of his conversations with his Russian counterpart under wraps.

Current and former US officials told the paper that Trump's efforts include confiscating the notes from his interpreter and not allowing them to discuss the details of the meetings with other officials in his administration.

The Post notes that this behavior by Trump is not usual per past presidential standards.

In one instance, following a meeting Trump had with Putin in Hamburg, Germany, in 2017 that former Secretary of State Rex Tillerson was also present for, a White House adviser and a senior State Department official were seeking additional information from Trump's interpreter that was more than the information provided in a readout from Tillerson. That, according to the Post, was when US officials became aware of Trump's efforts.

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