First Service Residential Child Protective Services, a nonprofit agency that oversees residential care for homeless adults, said in a statement that the dog could have sustained an injury in the house.
The agency said the dog was a service dog that was in the care of First Service’s Animal Welfare Department.
The agency did not say how the dog got into the home or who may have been responsible.
The Associated Press does not identify service animals.
First Service said it is investigating and would not release further information until the agency completes its own investigation.
Service Dogs, an animal welfare organization that advocates for better service to service dogs, has called on the public to keep pets in homes.
“If someone has a dog that’s been injured or lost in the home and it’s not a service animal, they should not be allowed to keep it,” said Laura Daley, the organization’s chief executive officer.
Earlier this year, The Associated Post reported that several dog owners and rescue groups had reported pets found unresponsive in homes they had placed.
Animal advocates have called on people to contact local animal shelters and seek to have dogs adopted out.