NEW YORK (AP) — A teenage girl and her boyfriend have admitted killing the girl's parents and dumping their bodies into the East River, a prosecutor said.

Eric Louissaint, 20, and Connie Leung, 17, gave "videotaped full confessions" to the murders of Stephen Leung, 55, and his wife Chilin, 41, Assistant District Attorney Todd Harrison said during their arraignment on murder charges Friday.

Police said the couple were angry that Leung's parents, immigrants from Hong Kong, disapproved of their relationship.

Louissaint was arraigned on two counts of first-degree murder, punishable by death or life in prison without parole.