Philippine authorities are to deport 77-year-old Hendricks, who was charged in an Ohio court of sex crimes against Filipino children.
"We received information from US authorities regarding the alleged sexual exploitation of multiple minor Filipino boys by Hendricks", Dana Sandoval, a spokesperson for the Philippine Bureau of Immigration said.
"At least seven children have come forward, but our sources estimate at least 50 cases have been unreported", she added.
Hendricks was arrested Wednesday at his home on the island of Biliran, where he has been serving as a priest for 37 years, according to the channel NewsAsia.
The priest was accused of molesting and raping around 50 victims, most of whom were as young as 7 years old, according to GMA News Online.
After Hendricks's arrest, he was flown to Manila, where the US Embassy is preparing to make his deportation happen.
"We will not allow sexual predators to prey on our children", Dana Sandoval said. "The victims were in his house and the abuses were committed while he was taking a bath with each of them", he added, commenting on the case.
After his arrest, Hendricks said that he was "sad leaving this town", without mentioning the case.
The Catholic Church has long been involved in a child sexual abuse scandal. In August 2018 a massive cover-up of sexual abuse and rape of minors by Catholic priests was revealed. More than 1, 000 children had been molested by at least 301 Roman Catholic priests in the US state of Pennsylvania since the 1940s.