A Tuesday morning crash shut down all but one lane of northbound Interstate 25 in Denver, according to the Colorado Department of Transportation.

As of 9:45 a.m. Tuesday, most lanes of northbound I-25 were closed between exit 213 for Park Avenue and Interstate 70 in Denver, according to state transportation officials .

Delays jumped from roughly 10 minutes to nearly 30 minutes in the area of the crash just between 9:30 a.m. and 9:45 a.m., according to CDOT estimates.

Traffic was backed up for miles south of the crash Tuesday morning, CDOT cameras along I-25 showed.

Information on the cause of the crash, how many vehicles were involved and whether anyone was hurt was not immediately available.

This is a developing story and will be updated.

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