By Alexandria Hoff

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MORRISVILLE, Pa. (CBS) — The death of a baby boy in Bucks County has been ruled a homicide, the coroner says.

Police say the 22-month-old was found dead Tuesday at The Commons of Fallsington apartment complex on Makefield Road in Morrisville.

An autopsy was performed on the two-year-old boy this evening. The coroner has confirmed that the cause of death was blunt force trauma to the head.

The circumstances surrounding the death are still being investigated.

The Bucks County District Attorney’s Office quickly embarked on a homicide investigation, where they also learned that the deceased toddler had a twin who died of what had been considered unknown natural causes 17 months ago when the babies were just five months old.

“We’re gonna chase down every angle and make sure that we not only don’t miss anything in this investigation but even look backwards in time to make sure that whatever was done back then, was done properly,” said Bucks County District Attorney Matt Weintraub.

No arrests have been made at this time.

Stay with for this developing story.

Alexandria Hoff