WALTHAM (CBS) -- A fire destroyed a four-unit home on Russell Street in Waltham Sunday.
Orlando Osorio, who lives on the first floor, says his neighbors upstairs alerted him to the fire.
"They came, the rushed, they knocked on us, and when we opened it was just like a big dust cloud," he told WBZ-TV.
The unit house about 20 people, all of whom are now displaced. No one was hurt.
The Red Cross was on the scene helping residents find temporary shelter.
The cause of the fire is under investigation.
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