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Kristin Murphy, Deseret News
Two children run to hug their father as firefighters fight a fire in a duplex where the family lives in Salt Lake City on Monday, Feb. 12, 2018.

Two children run to hug their father as firefighters fight a fire in a duplex where the family lives in Salt Lake City on Monday, Feb. 12, 2018. Investigators were working to determine what caused the blaze that overtook a rear unit but did not spread to the other apartment, where no one was home at the time, said Salt Lake fire spokeswoman Audra Sorensen. More than two dozen firefighters responded to the home near 1300 East and 2900 South about 2 p.m. Damage is estimated at $150,000.