LEESBURG, Va. — Loudoun County Fire and Rescue said the department determined what caused a house fire in Leesburg that sent one of its firefighters to the hospital over the weekend.

A charging lithium-ion battery had apparently ignited, setting off the smoke alarms inside the two-story house in the 19000 block of Kipheart Drive. According to a Loudoun County Fire and Rescue spokesperson, the fire was "accidental."

The fire caused about $1.2 million in damage to the single-family house and displaced two people. The flames originated on the first floor but could be seen rising with smoke out of the house's roof in a photo shared to LCFR's Facebook page on Saturday morning.

The fire was contained to the one house where it originated, firefighters said on Sunday, "limiting damage to the n

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