Residents of a seniors home are mourning the loss of an elderly tenant who was killed in a stubborn apartment fire at their building.

Fire crews were called to Griggs Manor at 100 Cavell Ave., just before 11:30 a.m. on November 30, says Toronto fire officials.

District Chief Stephan Powell said a fire broke out in the seventh floor of the seven-storey building, which is a senior’s home near Cavell Ave., and Royal York Rd.

The woman was pronounced dead at the scene, police said.

Fire Chief Matthew Pegg said on social media the fire department, police, and Fire Marshal’s office are working to determine what happened.

Crews responding to the scene were warned of reports of flames near the top of the building.

“I extend sincere condolences to family, friends and all those impacted by this morning’s fatal fire on Cavell Avenue,” Pegg said.

Police said they had reports that an elderly woman in the building was trapped due to flames. She was later pulled from the unit after firefighters or police breached the door to get her.

Police said an officer suffered a minor injury while trying to get to the woman.

Manny Garcia, of the Ontario Fire Marshal office said they are investigating reports that the woman had trouble getting out of the building.

“I understand that the individual may not have been able to find their way out. That’s obviously going to be a focus of our investigation,” he said.

They will also examining fire safety devices, smoke alarms, smoke detection devices to see if they played a role.

All residents of the building were evacuated.