KEARNEYSVILLE, W.Va. (AP) — A West Virginia Air National Guard member died early Sunday while helping firefighters respond to the scene of a blaze that had been intentionally set, authorities said.

The airman was assigned to the 167th Airlift Wing in Martinsburg. The unit was part of a mutual aid response to a fire at a vacant structure in Kearneysville, the West Virginia State Fire Marshal’s Office said in a statement. The blaze has been connected to a nearby fire at another vacant structure reported about 20 minutes earlier, the statement said. Investigators determined that both were the result of arson, officials said.

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Berkeley County Public Safety officials said in a statement that firefighters requested help around 2:30 a.m. and four were taken to a hospital for treatment. It’s not clear if the firefighter who died was among the four transported.

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The West Virginia Air National Guard announced the death with a “heavy heart” and later identified the guard member as Senior Airman Logan Young of the 167th Airlift Wing.

The fire marshal’s office said a $5,000 reward is being offered for information that leads to the arrest and conviction of those responsible.

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