EDWARDSVILLE, Kan. — The cause of an Edwardsville house fire last week that left one person dead remains under investigation at this time.

The Edwardsville Fire Department responded to the fire just before 3:30 a.m. on Thursday, March 30, in the 11300 block of Kansas Ave.

Fire crews encountered heavy smoke and fire coming from the single-story home with significant structural collapse in addition to a grass fire and pressurized natural gas line fire.

Crews attempted to search the home, but were unable to gain access due to the structure collapse and a gas-fueled fire.

The fire was knocked out just before 4 a.m. A man was found dead in the basement area of the home. The victim has been identified as 89-year-old Richard Styles.

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The cause of the fire is unknown at this time. The Kansas State Fire Marshal says there was no evidence of arson.