Philippine authorities handed a subpoena to Vice President Sara Duterte’s office, inviting her to answer investigators’ questions after she publicly threatened to have the president assassinated if she were killed in an unspecified plot herself.

Vice President Sara Duterte on Wednesday said she and President Ferdinand Marcos Jr. have reached a “point of no return,” banishing any possibility of them patching up. According to Duterte, she believes that the Marcos administration is “going after her.