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WASHINGTON (WUSA9) -- D.C. Fire officials are investigating an overnight house fire in Northeast.

It happened at 125 15th Street, NE, just before 3 a.m., officials say.

Fire officials tweeted that this was a two alarm fire and heavy smoke could be seen from the first and second floors. Officials say the roof collapsed.

One firefighter was transported with minor injuries.

The family has been displaced, according to D.C. police.

All roads have reopened.

Fire officials were also on the scene of a townhouse fire on T Street betweenbetween N. Capitol and Lincoln Rd.

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