Wagner leader Yevgeny Prigozhin planned to seize two of Russia top military officials when he launched a short-lived mutiny on Saturday, the Wall Street Journal reported on Wednesday, citing Western officials.

Prigozhin's plot involved the capture of Defense Minister Sergei Shoigu and top army general Valery Gerasimov when the pair visited a region along the border of Ukraine, the WSJ wrote.

Russia's Federal Security Service (FSB) learned of the plot two days before it was due to take place, forcing Prigozhin to change his plans at the last minute and launch a march towards Moscow instead, according to the report.

Wagner mercenaries took control of a key military base in the city of Rostov-on-Don, and his troops were approaching the Russian capital when Prigozhin called off his mutiny.

When asked about the WSJ report, two European security sources told CNN that while it was likely Prigozhin would have expressed a desire to capture Russian military leaders, there was no assessment as to whether he had a credible plan to do so.

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