Peru's former President Pedro Pablo Kuczynski flashes a vee for victory as he returns to a court hearing to determine his release, in Lima, Peru, Monday, April 15, 2019. (Photo: AP)

A Peruvian judge has ordered that former president Pedro Pablo Kuczynski be jailed for up to three years as authorities investigate his alleged involvement in a corruption case.

The order announced Friday against Kuczynski, which is designed to prevent him from trying to flee during the course of a money laundering investigation, came after 80-year-old was hospitalized because of illness in recent days.

Last week, a judge had ordered Kuczynski's detention for 10 days as he investigates some $782,000 in previously undisclosed payments from Brazilian construction giant Odebrecht more than a decade ago.

Kuczynski resigned last year as opposition lawmakers sought his impeachment.