COLLINS, Iowa (AP) — Sheriff’s investigators in central Iowa say three people have been found dead in a Collins travel trailer and likely died from accidental carbon monoxide asphyxiation. The Story County Sheriff’s Office says in a news release that deputies were called to the residence just before 8 a.m. Tuesday to check on the welfare of people there.

Arriving deputies discovered the bodies of three adults inside, including a 62-year-old woman, a 41-year-old woman, and a 20-year-old man. Officials say all three lived there. Three dogs were also found dead inside the trailer. Investigators say there were no signs of foul play.