Earlier this year, Berlusconi, 78, was acquitted of charges he paid an underage prostitute for sex and used his influence to cover it up.
Putin spokesman Dmitry Peskov was quoted Monday by Russian news agencies as saying Putin, 62, has not had a summer vacation yet but confirmed he and Berlusconi spent the weekend in the Altai region at a vacation compound owned by the gas giant Gazprom.
Berlusconi and Putin met briefly in Rome when Putin was visiting this month.
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