Manila, May 16 -- The Office of the Solicitor General (OSG) is investigating the citizenship of Bamban Mayor Alice Guo after her alleged ties to a Philippine Offshore Gaming Operator (POGO) was brought up in a Senate panel hearing.

"Yes, I created a special team of solicitors last week to look into the matter and determine if there is good reason to believe that the subject is unlawfully holding or exercising a public office," Solicitor General Menardo Guevarra said in a message to reporters on Thursday.

"If it could be established by proof, the OSG will commence quo warranto proceedings to oust the person concerned."

For now, Guevarra said, the OSG is gathering relevant information from the Commission on Elections (Comelec), Departmen...