Russia's most senior generals have dropped out of public view following a failed mercenary mutiny aimed at toppling the top brass, amid a drive by Russian President Vladimir Putin to reassert his authority and unconfirmed reports of at least one arrest.

Valery Gerasimov, Russia's top general, has not appeared in public or on state TV since the aborted mutiny on Saturday when mercenary chief Yevgeny Prigozhin demanded Gerasimov be handed over. He has not been mentioned in a defense ministry news release since June 9 either.

Gerasimov, 67, is the commander of Russia's war in Ukraine, and the holder of one of Russia's three "nuclear briefcases," according to some Western military analysts.