THE mother of an eight-year-old boy found hanged alongside his four-year-old sister told cops he had been bullied.

Lisa Snyder made the claims in a 911 call to emergency services after her children's bodies were found in a basement last month.

5 Cops at the scene of the double tragedy in Albany Township, Pennsylvania Credit: ABC

A recording of the call suggests her son had been bullied and "had made threats of doing this but didn't want to go alone." Fox 10 Philadelphia reported.

“Two cardiac arrests, paediatric," the dispatcher said in a 911 call.

According to search warrants, the children were found by their mother hanging three feet apart.

“Both children are hanging in the basement," one dispatcher is heard saying.

“She mentioned that the eight-year-old has been bullied and he had made threats of doing this but didn’t want to go alone and sadly he may be the aggressor," the dispatcher said.

The Berks County District Attorney is refusing to comment on the ongoing investigation.

5 Police have obtained several search warrants for the investigation Credit: ABC

5 Police are now investigating what led the the horrific incident Credit: CBS

However, the claims of bullying have shifted focus somewhat to the local elementary school Connor attended.

"Connor was a beloved member of the Greenwich Elementary School Community, who enjoyed his peers and teacher," said Superintendent of Schools Christian Tempchatin.

"He’s dearly missed, fondly remembered for the smile that he brought on his face and he brought to the people he encountered every day."

Mrs Snyder called cops after finding Connor and her daughter Brinley hanging in their home in Albany Township, Pennsylvania.

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It's been reported after her children died, Mrs Snyder changed her Facebook profile with a photo and the saying: “Words scar, rumors destroy, bullies kill.”

Paramedics worked tirelessly to revive the children while on the way to the hospital.

Once they had arrived, they were placed on life support, however tragically died three days later.

Investigators have filed search warrants to analyse Connor’s Xbox video game console, a mobile phone, two iPads, and a laptop, Morning Call reported.

The warrant says: "The eight-year-old victim is known to play video games and view various internet websites utilising the X-Box gaming console."

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Berks County District Attorney John Adams told Morning Call last week: "Whenever we are dealing with the unnatural death of a child, it is very emotionally troubling to all of us.

"I believe to have two children perish in the same incident really compounds our concerns and we are looking forward to having some answers.

"I think it’s going to take some time to get to the bottom of this."

5 The kids were tragically found in the basement of their Pennsylvania home Credit: CBS

5 Emergency vehicles rushed to the scene Credit: ABC