A 9-year-old girl riding her bike in Detroit was mauled to death by a pack of dogs — even as neighbors rushed to her aid, according to a report.

Emma Valentina Hernandez was attacked around 4 p.m. Monday as she pedaled with her brother in an alley on the west side of Detroit, radio station WWJ reported.

“There’s no words. I feel so empty. I don’t know what to do,” her father, Armando Hernandez, told the outlet. “I’m really heartbroken right now.”

Her father said he previously warned the dog’s owner that his fence wasn’t stable enough to hold the animals, WWJ reported.

The trio of dogs, believed to pit bulls or pit bull mixes, escaped from the yard and went after the young girl, WWJ reported.

Upon hearing screams, neighbors attempted to stop the dog pack from attacking the child, the Detriot News reported.

“They were not stopping,” said neighbor Edward Cruz, who threw a brick at the dogs. “I had to step in.”

At least one of the good Samaritans shot and killed one of the dogs in the attack, the Detroit News reported.

The girl, who suffered severe injuries to her throat, was brought to Children’s Hospital of Michigan, where she was pronounced dead, officials said.

“I tried my best. I tried CPR, I tried helping her. I couldn’t do it. I did everything I could in my power to just — she was gone. She was gone when I reached her,” her father told WWJ.

The dogs’ owner, a 33-year-old man, was taken into custody Monday in connection with the animal attack, WWJ reported.