"About 15 children were detained in Moscow," TASS quotes her.
According to the Ombudsman, the smallest of them were 9 and 12 years old.
At the same time, Kuznetsova added that many minors have already been released.
The police detained them for handing over to their legal representatives.
Earlier, the Investigative Committee began investigating the use of violence against law enforcement officers during an unauthorized event in the center of Moscow.
As noted in the Ministry of Internal Affairs, about 4 thousand people are taking part in the unauthorized action.