SAC CITY, Iowa (AP) — Authorities say new homeowners have found what appears to be skeletal remains in the basement of a house in Sac City. Police say the remains were found on Monday when the owners were cleaning in the basement. The remains were sent to the state medical examiner’s office for an autopsy. No other details were released. A telephone call to Sac City Police Chief John Thomsen was not returned Tuesday afternoon. The Sac County sheriff’s office and the Iowa Division of Criminal Investigation are assisting in the investigation.