UPDATE: All lanes of I-75 north have reopened after two crash caused standstill traffic on Monday morning.

The first involved four vehicles and happened around 11:00am, just south of the East Brainerd Road exit.

Chattanooga police say four people were taken to a hospital with non-life-threatening injuries.

Their names have not been released.

The second crash happened north of the state line, just before the I-24 split.

It's unclear if anyone was injured in the second crash.

While all lanes have been cleared, congestion still remains, according to TDOT.

The cause of the crashes are unknown at this time.

Stay with Local 3 News for updates to this story.

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