Officials have identified a woman killed in a fire at her Cheverly home Sunday as 59-year-old Stephanie Kay Syslo.

Investigators are working to determine what sparked the blaze in the 2400 block of 59th Place, but they have found no evidence that the fire was “anything but accidental,” said Mark Brady, a Prince George’s County Fire/EMS Department spokesman. He said Syslo died of smoke inhalation and heat-related injuries.

Fire officials have said previously that Syslo’s home was filled with materials in a so-called “hoarding situation,” and it did not have a working smoke detector. The materials, fire officials have said, hindered firefighting efforts and may have helped fuel the flames.