This was announced by the Adviser to the Head of the Security Service of Ukraine Yurii Tandit, Censor.NET reports citing Hromadske TV website.
The captive Major Vladimir Starkov says he was ordered to change surname and leave his military IDs in Russia.
Tandit stresses the Russian Major took a fake surname - Ovsyannikov being his wife's maiden name.
"I must admit that neither Ovsyannikov, nor Starkov received any documents on the territory of Ukraine. It only confirms he is not a resident of Ukraine," the advisor stated.
As reported, he was given a certificate upon arriving at a military unit.
"Nonetheless, he brought passport and hid it in a safe of the Shakhtar Plaza hotel in Donetsk. He even told us the ID code. Moreover, he brought a Sberbank of Russia credit card. He received allowance and salary on it," Tandit said.
The captive officer also admits Russian military in Donbas get triple salary.