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FORT WORTH (CBSDFW.COM) –  Two people were killed and four suffered non-life-threatening injuries in a two-vehicle crash on southbound I-35 near Heritage Trace in North Fort Worth Monday night.

Investigators have all southbound lanes shutdown and say they will likely stay that way until midnight or 1:00 a.m. Tuesday.

No details yet on what led to the crash.

This is a developing story.

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