Thomas Markle, father of Meghan, the British Duchess of Sussex, was ordered to jail Tuesday because he removed an electronic monitoring device from his ankle, just days after he was charged with possession of child sexual abuse material.
Authorities previously had seized some 80 items involving child sexual abuse material from his rented storage unit in Los Angeles.
On Tuesday, a Florida judge ordered him remanded to a detention facility without bail and instructed relevant authorities to evaluate his mental condition.
Meanwhile, Meghan made her first appearance since his father's arrest.
Speaking at the European Parliament in Brussels, Prince Harry and Meghan called for stronger safeguards against online harm to children, warning tech companies have failed to act despite years of warnings from experts and greiving families.