FORT WORTH (CBSDFW.COM) – Nearly two dozen people have been forced out of their home after a two-alarm fire at an apartment complex in Fort Worth.

Firefighters were called out to the complex, in the 2400 block of Via Villani, just before midnight.

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When crews first arrived smoke and flames were moving through the attic of the two-story building.

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In all, six of 12 units were damaged by fire and water.

Twenty people were displaced by the fire. The Red Cross is assisting those affected.

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Investigators are still working to find out what sparked the fire.