VAN WERT, Iowa [KCCI] — Authorities in Decatur County say one person was killed in a house fire Thursday morning. A 911 call reporting the fire in the 200 block of West First Street first came in around 10:30 a.m., according to Decatur County Sheriff Chris Lane, who confirmed that one person was dead but did not release the identity. Officials have also not said what they believe caused the fire, which is still under investigation.