Guatemala's constitutional court has revived a process that could strip President Otto Perez Molina of immunity from prosecution amid growing corruption scandals.

Court President Gloria Porras says an injunction suspending the process last month was lifted Wednesday after the court considered Perez Molina's petition. The ruling is an early step in a process that could lead to impeachment.

Vice President Roxana Baldetti was forced to resign in a customs scandal involving kickbacks for lower import duties allegedly headed by her private secretary. In a second scandal, officials purportedly awarded a $15 million contract for kidney treatments to a company lacking a license to perform the services.

Perez Molina has not been implicated and says he did nothing wrong. Protesters regularly fill streets in the capital calling for his resignation.