BOSTON -- Police are investigating after remains of what appears to be two fetuses or babies were found in a South Boston home.

Officers first responded to the East Broadway street apartment on Thursday afternoon. The medical examiner showed up and took what appeared to be a small box out of the unit.

On Friday afternoon, the medical examiner returned for a second visit. Police said additional human remains were found by homicide detectives. 

It's unclear how long the remains have been there.   

"I never really think twice almost because I feel so safe and then something like this happens and it kind of sets you back to the reality of what life can be," one woman told WBZ-TV near the scene. 

"It's horrible, I don't understand how anybody could do that to any child or any baby at any stage in their life," a man said. 

Boston police have made no arrests. No other information has been released.