Video surfaces of Dulce Alavez from man claiming to be her father

Authorities are reportedly investigating after a man claiming to be Dulce Alavez's father posted a video online about the child.
The video shows Dulce with the man, identifying himself as Edgar Perez, believed to be her father. In the video posted to YouTube, the man says he had nothing to do with her disappearance and does not know where she is.
The video shows the two with music playing in the background.
According to reports, the man was deported in 2018 and is living in Mexico.
Dulce has been missing since she disappeared from a Bridgeton park back in Sept. 2019. She is a Hispanic girl who is about 3 feet tall, weighing 60-70 pounds with brown eyes and brown hair. She was last seen wearing a yellow shirt with an elephant on it, as well as black-and-white pants and white shoes, police say.
Detectives said they believe Dulce was taken by a light-skinned Hispanic male, 5 feet, 6 inches to 5 feet, 8 inches tall with a thin build, facial acne, no facial hair and wearing orange sneakers, red pants and a black shirt. He allegedly led Dulce from the park to a red van with a sliding side door.
Anyone with information is asked to contact the New Jersey State Police Missing Persons Unit at 609-882-2000, ext. 2857; the Bridgeton Police Department at 856-451-0033; or by calling 911 immediately.
The FBI says they're optimistic they'll eventually be able to solve the case.