Iranian authorities on Monday arrested Hamid Bagha, a deputy of the former president Mahmoud Ahmadinejad, for undeclared charges, according to Iranian news agencies.
"Former vice-president Hamid Baghaei had a charge sheet issued against him by the judiciary and the prosecutor summoned him today for questioning," judiciary spokesman Gholamhossein Mohseni-Ejei said, Fars news agency reported.
Mohammad Reza Rahimi, another deputy of Ahmadinejad, was sentenced to five years in January and ordered to pay $1.3 million (38.5 billion rials) in a money laundering and embezzlement case.
Mohseni-Ejei did not reveal if Baghaei was arrested due to the embezzlement scandal, adding that he was not authorised to define the charges.
After his arrest, Rahimi sent a letter to Ahmadinejad who denied accusations of being involved in the case as his supporters claimed the accusations were politically motivated.
Last year, a billionaire businessman was linked to the scandal, which was exposed in 2011 and consequently negatively affected Ahmadinejad's presidency for the remaining two years before the end of his second term.