“Ivanov resigned and pleaded guilty,” TASS quoted Melnikov.
According to the representative of the PMC, now Ivanov is in a temporary detention center in the north-east of Moscow.
Earlier, the head of the FIU Anton Drozdov confirmed the detention of Ivanov.
The fund reported that they provide assistance to the investigating authorities.
A spokesman for the Russian leader, Dmitry Peskov, said the Kremlin was unaware of the reasons for the investigative actions.