A 12-year old girl called 911 reporting that her mother was unresponsive late Thursday night in northwest Harris County, where first responders said they found her mother and stepfather dead in an apparent murder suicide.

Authorities have not confirmed identities or the cause of death for the two people yet, Sgt. Michael Ritchie with Harris County Sheriff’s Office homicide unit, told OnScene TV. Authorities have recovered a weapon but have not disclosed what type of weapon they found, he said.

Deputies responded to the call at the 2500 block of Baldwin Springs at around 11 a.m., Ritchie said. EMS and deputies arrived and found the daughter safe, he said. Neither of the deceased were transported to the hospital and only the three were inside the home, Ritchie said.

“There is no signs of any type of forced entry or any type of evidence showing that there was someone else here that did this and left the scene,” Ritchie told OnScene TV. “But, we’re still looking at everything.”

Ritchie said police believe the two adults were married or in a common-law relationship, and that the three had lived in the home for “a good amount of time.”

Ritchie said authorities are looking at video cameras and checking with neighbors to establish a full timeline of the events. As of Friday morning, the deaths remain under investigation, Ritchie said.