A gunman killed at least six people, including four children, and wounded a teenager in a Houston suburb and then engaged police in a three-hour standoff before finally surrendering late Wednesday.
The suspect, who has not yet been identified, is believed to be the biological father of some of the children and the adoptive father to the others, Click2Houston.com reports.
Harris County Constable Ron Hickman said the incident appeared to be a "domestic situation gone south," and that it may have involved a divorce or separation.
Police say three children and two adults were dead at the scene. Two wounded children, ages 4 and 15, were taken to the hospital, where the 4-year-old later died, KTRK reported.
KHOU says the survivor, a 15-year-old girl, told police the suspect was on his way to another location to kill more people.
She remains in critical condition, but police were able to use her information to intercept the suspect's car, leading to a 25-minute chase before authorities disabled his vehicle using rumble stripes, the Houston Chronicle reports.
Then, the standoff began.
News media posted images of the scene on Twitter:
The Houston Chronicle captured an image of the suspect in his car, apparently negotiating with police during the standoff: