ALTA (CBS13) – Four firefighters battling the Lowell Fire in Nevada County are recovering after being burned Sunday.

Three of those firefighters are expected to be released Sunday night.

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The fourth suffered more serious burns to their limbs and will stay overnight at UC Davis Medical Center.

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Cal Fire reports that firefighter’s wounds are not life-threatening.

All the firefighters were on Chicago Park Powerhouse Road when fire overran them at about 5 p.m.

Two of the firefighters work for Cal Fire. The two other, including the firefighter with more serious burns, are with the U.S. Forest Service.

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Cal Fire is investigating the incident. The Lowell Fire has burned about 1,500 acres as of Sunday night and is up to 15 percent containment.