Pennsylvania prosecutors investigating the hanging deaths of a 4-year-old girl and her 8-year-old brother have charged their mother with murder in their deaths.

Police had reported the children of 36-year-old Lisa Snyder, Conner and Brinley, had been found hanged with a dog leash in the basement of their Albany Township home on Sept. 23. Snyder had suggested to a 911 dispatcher that Conner was suicidal because of bullying and took Brinley with him because he "didn't want to go alone."

Snyder’s arrest was announced Monday by Berks County prosecutors. She was arrested at her home.

“This was a horrific, tragic incident,” District Attorney John Adams told a news conference, Fox 32 reported.

Snyder was also charged with child endangerment and having sex with a dog, the Allentown Morning Call reported.

The paper quoted Adams as telling reporters, "Eight-year-olds, generally, that I am aware of, do not commit suicide so of course, we had questions almost immediately."

SOUTH CAROLINA BOY, 10, WAS SHOT DEAD BY FRIEND HANDLING GUN: SHERIFF

He said that Snyder never returned to the basement where paramedics worked to save her children after she called 911 to report finding Conner and Brinley hanging, the paper reported.

“I would agree that we all may think that a mother of children who are found hanging would make every effort possible to save them,” Adams said. “That was not done in this situation.”

The paper, citing court documents, reported that authorities said the children’s deaths happened a day after Snyder searched “hanging yourself” on Google and visited a website detailing an effective way of hanging a person.

The court papers also quoted authorities as saying that Snyder also conducted searches for “how long to die” from carbon monoxide and for “almost got away with it,” a reference to a true crime television series on the cable channel Investigation Discovery, the paper reported.

MOM OF CHILDREN FOUND HANGING TOLD 911 DISPATCHER SON WAS BULLIED, 'DIDN'T WANT TO GO ALONE'

The paper also cited an arrest affidavit which stated that in the weeks leading up to the hangings, Snyder sent at least three explicit photos of herself engaged in sexual acts with a black and white dog to an individual who was not named.

According to court records, Conner and Brinley were “hanging approximately three feet apart from a single wired cable with plastic coating,” Fox 32 reported.

Investigators said the dog leash was purchased that morning and was wrapped around the main support beam in the basement and two dining room chairs were knocked over next to the children, according to the station.

CLICK HERE FOR THE FOX NEWS APP

The station quoted authorities as saying that a person who lived in Snyder's house rejected the notion that Conner was suicidal or had been bullied.

Additionally, the station reported that officials said they spoke to numerous school officials, family members and classmates and found no evidence of bullying.