OMAHA, Neb. (AP) — Despite a fire line break, a Nebraska official says firefighters are still on track to completely contain three wildfires that have blackened more than 117 square miles of north-central Nebraska.

Nebraska Emergency Management Agency spokesman Mike Wight said Friday the total area burned expanded by nearly four acres late Thursday and overnight because flames surmounted a fire line on the southern edge of the Wentworth fire.

Wight says containment averages 70 percent over the three blazes, with 97 percent containment of the biggest, the Fairfield Creek fire. He says complete containment is still expected by Sunday.

He had no reports of any new injuries or structures being burned.