The US Securities and Exchange Commission has started a probe into HP, connected to allegations of kickbacks to Russian government officials in exchange for contracts.
The US agency launched its investigation following a search of an HP office in Moscow by Russian authorities and arrest in Germany of three individuals who worked for the Silicon Valley-based company.
Size of the alleged bribes totaled about $11 million over a period of up to seven years, beginning in 2000, the New York Times reported, citing a Dresden prosecutor's office as a source.
Those arrested were three of the nine people investigation targeted. They reportedly had influence on HP's contract negotiations.
Palo Alto, Calif.-based HP said it was cooperating with the SEC and European authorities and had launched its own investigation into the allegations.
"HP has been in communication with the SEC and will continue to fully cooperate with the authorities investigating the matter," an HP spokesperson wrote in an emailed statement.
"This is an investigation of alleged conduct that occurred almost seven years ago, largely by employees no longer with HP.
We are cooperating fully with the German and Russian authorities and will continue to conduct our own internal investigation."
HP has sold IT equipment and provided services to Russian agencies.
According to CNET, the German authorities' investigation focused on bribes that were allegedly given out in exchange for a contract to sell gear to the Russian prosecutor general's office through HP's German subsidiary.