Pedro Alliana was sworn in as Paraguay's new president on Friday just ​as authorities put his impeached predecessor Santiago Pena under house arrest, the latest developments in a fast-moving political and financial ‌crisis triggered by the collapse of a digital bank.

Axar.az reports, citing Reuters, that prosecutors speaking outside Pena's house in Asuncion said charges were still being determined but could include influence peddling. Pena was ordered to appear at the prosecutor's office on Saturday morning.

Pena was ousted from the presidency about an hour beforehand in a unanimous Senate vote, with lawmakers citing questions over ​his past links to the collapsed digital bank ueno that had provided accounts for nearly half of Paraguay's population.

Although Pena offered his resignation ​on Thursday, the Senate chose to finalize the impeachment process rather than accept, and swiftly moved to install ⁠his second-in-command, Alliana.

By the time of his arrest, dozens of protesters had gathered outside Pena's residence. Police installed a security cordon around the property.

The ​turmoil began earlier this week when Paraguay's central bank intervened in ueno, whose customers include many people who had not previously had access to a bank ​account.