Philippine security forces said Wednesday they had replaced Vice President Sara Duterte's bodyguards, days after the justice department launched a probe into her alleged death threat against President Ferdinand Marcos.

President Ferdinand Marcos Jr. on Monday described her threat as a criminal plot and vowed to fight it and uphold the rule of law in the country in a looming showdown between the country’s two top leaders.

The Philippine police filed a complaint against Vice President Sara Duterte and her security detail over an alleged assault, prompting her to claim she is being persecuted and that her relations with President Ferdinand Marcos Jr.