The Philippine lower house on Wednesday impeached Vice President Sara Duterte, the daughter of the country's firebrand former leader, setting the stage for a rare, high-profile trial in the Senate.

She says her lawyers are preparing for a legal battle in her upcoming impeachment trial but refused to say if resignation is an option.

Philippine Vice President Sara Duterte said on Friday she had been preparing since last year for impeachment and would welcome on her defence team her firebrand father, former President Rodrigo Duterte,