Investigators are attempting to determine what caused a family of five to die in their own home Saturday.

Springville Police spokesman Lt. David Caron said the bodies were found by relatives at approximately 8 p.m. local time. The identities of the victims were not released, but the ages of the parents were given as 37 and 36. The children were identified only as two boys, aged 14 and 11, as well as a 12-year-old girl. 

Caron said the family lived in a duplex whose other occupants were unharmed. He added that firefighters had found no sign of carbon monoxide, though he noted the gas could have been ventilated out of the home before the test. The Salt Lake Tribune reported that two cats were found alive in the home, along with another animal that Caron believed to be a ferret. 

Caron told the Associated Press that the doors of the house were open when authorities arrived and said they may have been left open by the relatives who discovered the body. 

"Police secured the scene and checked to make sure it was safe to continue the investigation inside," he said.

"There were no obvious signs of trauma or foul play," Caron told the AP in a telephone interview early Sunday. "We didn't see that when we first got there and we still don't." A medical examiner is likely to determine the final cause of death.    

The spokesman also said that police don't believe that there is any danger to the community.

The Associated Press contributed to this report. 

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