Authorities have not identified the victims found inside the home in the upscale neighborhood

Three adults and one child were found dead inside a home in an upscale neighborhood in Washington, D.C., on Thursday in what police are calling a “very suspicious” house fire.

Authorities have not identified the victims found inside the home, but family members told The Washington Post that the house is owned by Savvas P. Savopoulos, a 46-year-old executive, and his wife Amy.

“We don’t know what is going on,” Savopoulos’ sister Debra Ann Masser told the paper, adding that she’d reached out to police for answers but hasn’t heard anything.

The cause of the fire has not been determined, though police are asking neighbors whether they noticed anything unusual at the home. “Right now, no obvious signs of forced entry, although the nature and origin of the fire is very suspicious,” Police Chief Cathy Lanier told Fox 5.

Authorities did say that a blue Porsche was seen at the home earlier that morning and later found by itself in Maryland. They are asking anyone with information about the car to step forward.

A housekeeper who worked for the family told Fox 5 that another housekeeper and the couple’s 10-year-old boy slept in the house Wednesday evening. The housekeeper got a text on Thursday morning telling her not to come in because the family was sick.

When she called the family after receiving the text, no one picked up.

A neighbor who witnessed the fire described the Savopoulos family as “wonderful” people. “Their kids are well brought up,” said Jacqueline Rizik, who added that the family lived in the neighborhood for at least two decades.

In addition to the 10-year-old boy, the Savopoulos household had two teenage girls who were not believed to have been in the home at the time of the fire.

Police are still investigating.

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