An Argentine judge was assigned on Monday to investigate President Javier Milei's role in promoting a cryptocurrency that crashed, the latest shockwave from a scandal that has threatened to slow the libertarian leader's momentum.

A judge in Argentina was selected Monday to investigate allegations of fraud against President Javier Milei for his brief promotion of a cryptocurrency whose value collapsed within hours of its launch last week.

Critics have accused Milei of involvement in the rapid rise and fall of a cryptocurrency, costing investors thousands.