Philippine authorities have named Thomas Markle Jr., the 60-year-old son of Thomas Markle, a person of interest in an investigation into alleged child sexual abuse materials involving his father.

Thomas Markle is also the father of Meghan Markle, the wife of Prince Harry, the Duke of Sussex.

According to a report by RH Edniel Parrosa, Interior Secretary Jonvic Remulla said that investigators are looking into the younger Markle's possible involvement after receiving information that underage girls were allegedly brought to his residence in Cebu.

“May witness kami na under na underage girls were being brought to his house. We’re following [it] up,” Remulla said in an interview at Camp Crame.

“We will know in the next few [days]. Kasi, to accuse the father only is only half the police work. There are signs that point that the son is involved in the crime as well,” he added.

Markle Jr. was considered a person of interest despite being the one who surrendered electronic devices and other personal belongings left behind by his father to authorities on Oct. 23.

Investigators reportedly recovered around 7,500 photographs and one video from the devices. The materials allegedly depict the sexual abuse of minors, both boys and girls, including children as young as 10 to 11 years old.

Authorities are coordinating with the Federal Bureau of Investigation (FBI) to obtain additional information and assistance in the investigation.