SPRING, Texas (AP) — A man involved in a domestic dispute opened fire at a suburban Houston home Wednesday evening, killing six people, four of them children, and wounding one teenage girl, authorities said.

The suspect surrendered after a three-hour standoff with deputies on a nearby street, emerging from his car, raising his hands and sinking to his knees. His identity was not released.

The Harris County Sheriff's Office said in a written statement that precinct deputy constables were called to the house about 6 p.m. and found two adults and three children dead. Another child later died at a hospital.

"It appears this stems from a domestic issue with a breakup in the family, from what our witness has told us," Assistant Chief Deputy Constable Mark Herman of the Harris County Precinct 4 Constable's Office told reporters.

Authorities did not release the victims' identities and did not say how they might be related to each other or the suspect.

The 15-year-old girl who survived identified the shooter and directed deputies to him.

Deputies used armored vehicles to block the suspect's car.

Sheriff's Sgt. Thomas Gilliland described the man as in his 30s with a beard "and cool as a cucumber." He said that when he and other officers approached, the man was "just sitting in his car looking out at us."

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Associated Press writers Emily Schmall in Fort Worth and Ramit Plushnick-Masti in Houston contributed to this report.