LOGANVILLE, Ga. — Four young children and their father were found slain in a home outside Atlanta early Thursday, and police say the mother — now charged with their deaths — was the one who called 911 to report the killings.

The five were apparently stabbed to death. A fifth child, a girl, survived and was hospitalized with injuries described as serious, police said.

The woman was detained by police after the bodies were found inside the home in Loganville, Gwinnett County police Cpl. Michele Pihera told reporters at the scene. Police later charged 33-year-old Isabel Martinez with five counts of malice murder, five counts of murder and six counts of aggravated assault.

"She was quickly taken into custody and right now she's at Gwinnett County Police headquarters being interviewed," Pihera said. Police have not said whether she was injured and said a motive wasn't immediately known.

"Right now, we believe we have everybody involved in this crime," Pihera said, adding that she does not want people in the community to think that a dangerous person is at large.

Pihera confirmed that the 911 call came from an adult woman who was inside the home. Pihera says police believe the suspect made that call.

Pihera said the caller was speaking Spanish, which initially made it difficult for 911 operators to communicate with her. The county Sheriff's Office said Martinez is being held for U.S. Immigration and Customs Enforcement but didn't provide further details.

Early indications are that a knife was used to attack the five, though a medical examiner will make the final determination about the cause of death, Pihera said.

The hospitalized girl was still alive Thursday afternoon, police said in a brief update on the case.

The four children killed appear to be younger than 10, Pihera said. Their slain father was in his mid 30s, she said.

Police initially said in a statement that a woman inside the home called police at 4:47 a.m. Thursday to report a stabbing and officers answering the call found the five bodies inside.

Outside the single-story home with white paneling and black shutters, neighbors sat in their front yards later Thursday. Crime scene tape surrounded the home and parts of the yard in the Loganville area, about 30 miles east of Atlanta.

Some neighbors in the small, largely Hispanic neighborhood said they had no clue anything was amiss in the home until police mobbed the scene Thursday morning.

The neighbors said the Spanish-speaking family had moved to the community recently, and their children seemed happy playing with other neighborhood kids.

Victoria Nievs said the children's mother had recently suffered the death of her father.