A 17-year-old girl was fatally shot in the head at a Queens house — and cops are questioning a young man who was there when it happened, police sources said Sunday.

Deaza Barkley was shot at the home on Clover Place near Foothill Ave. in Holliswood at about 5:15 p.m. on Saturday, cops said. She lived in East New York, Brooklyn, according to cops.

Medics rushed the teen to Jamaica Hospital, but she could not be saved.

Deaza leaves behind a younger brother and an older sister, a longtime friend of her mother told the Daily News.

“I’m so lost for words,” said the family friend, who didn’t give his name. “I’ve known [Deaza] since she was 3 years old, 4 years old.

“Her mom called me this morning crying. I asked her what’s going on? She told me what happened. I said, I’m on my way. ”

Cops are still investigating the circumstances of the teen’s death and have not yet determined if it was a homicide. But in a brief interview, her grieving mother said, “My daughter was just murdered.”

A gun was recovered from the scene and police are questioning a young man, but no charges were immediately filed.

The girl was a cheerleader who loved to dance, according to a friend who visited Deaza’s home to pay her respects to her parents.

“She was loving,” said the friend. “She was caring.”

Deaza was expecting to graduate high school this year, the family friend said.

“I’m so confused. She was the quiet type. She did her schoolwork. She’s never been in trouble. That’s why I’m so confused. I’m just trying to find out what happened,” the friend said. “I know she liked to dance. She was a cheerleader. She was a charismatic person.”

A neighbor on the sleepy residential block said she was “absolutely not shocked” the violence stemmed from the home.

“If I say that it’s a multifamily home, I’m giving it dignity,” said the woman, who asked not to be named. “Honestly, it’s almost like a boarding house, almost like a shelter. If a group comes in, another group goes out.”

The woman and her husband alleged they’ve watched people scaling the roof and slipping through windows, while dogs are frequently left outside in the cold, barking through the night in the backyard.

“If anything was gonna happen on this block, it was gonna happen there,” said the neighbor’s husband. “I think more is going on than what just happened.”

Other neighbors dismissed the claims, insisting nothing appeared unusual at the house and that they’ve never interacted with any occupants.

“My heart goes out to her and her family,” said Jonathan Lalljee, who has lived on the block for 15 years. “It’s a very sad thing to happen.”