BIG PRAIRIE TOWNSHIP, MI -- A 77-year-old woman was pronounced dead after a dog bit her, police said following an initial investigation.

About 7 p.m. Tuesday, Nov. 13, Michigan State Police troopers were dispatched to a residence for a report of a an unresponsive female that appeared to have been bitten by a family dog, the Michigan State Police Hart Post said in a news release.

Life-saving measures were not successful, and the woman, Sharon Lee Daniels, was pronounced dead at the scene, police said.

The initial investigation determined Daniels was home alone with three family dogs when one of the dogs fatally bit her. Daniels is disabled and was confined to a wheelchair, police said.

State police Lt. Matt Kanitz said Daniels lived with other family members. They were away from the home, however, when the biting happened and returned to find her unresponsive.

Kanitz said investigators believe Daniels' health issues, to some degree, may have contributed to her death.

He did not know whether the dogs, family pets, had shown any aggression in the past.

"The dogs were known to her and she was known to them," he said.

Troopers are continuing to investigate the incident as an autopsy is pending. No criminal activity is suspected at this time, according to police.

Three pit bull dogs were seized by Newaygo County Animal Control officers and are currently being held at the Newaygo County Animal Shelter.

State troopers are continuing to investigate the incident. The Newaygo County Sheriff's Department, Newaygo County Animal Control, Big Prairie Fire Department and Life EMS assisted the Michigan state Police.