In Astana, suitcases with dollar bills were thrown out of the window amid media reports of arrests of senior executives.
Photographs of money and police scattered in the area are spreading on social networks.
According to preliminary information in the media, senior managers from the quasi-public sector were arrested.
There is no official confirmation of the arrests yet. The National Security Committee has not yet commented on the situation.
It is not known if the money found is related to the alleged arrests.