EAU CLAIRE, Wis. (AP) — Inspectors have completed their on-scene investigation into an off-campus apartment fire that killed two University of Wisconsin-Eau Claire students from Minnesota last month.

Fire Inspector Gary Puljas says in a news release Wednesday that physical evidence gathered at the scene will now be analyzed. He says it’s not known how long that analysis will take.

Earlier, Puljas said the fire likely started in one of the apartment’s bedrooms.

Jacob Clarkson and Ross Livermore, both 21, died as a result of the Oct. 8 fire. Two other roommates escaped the blaze. The four friends graduated from high school in Stillwater, Minn., in 2009.

The property is being returned to the owner Wednesday. The cause of the fire remains undetermined.

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