Iran's re-elected President Hassan Rouhani addresses a press conference in Tehran, capital of Iran, on May 22, 2017. Iran's re-elected President Hassan Rouhani said Monday that United States should drop its "hostile" policies towards the Islamic republic. (Xinhua Photo)

TEHRAN, July 16 (Xinhua) -- Iranian judiciary confirmed on Sunday that Hossein Fereydoun, the younger brother of President Hassan Rouhani, has been detained over financial charges.

Gholamhossein Mohseni Ejeie, deputy judiciary chief, told at a press conference that Fereydoun, a top aide to the president, was jailed because he failed to pay the bail set by the judiciary.

The judiciary had carried out a series of probes into Fereydoun, before issuing indictment against him on Saturday, Ejeie said, without elaborating on the details of the charges.

Ejeie said if Fereydoun pays the bail, he will be released.

A number of other people have also been investigated and questioned in the same case as the investigation continues, he added.

Some Rouhani's supporters suspect that the charges against Fereydoun, who participated in the nuclear talks with major powers that led to a deal in 2015, are politically motivated.