A crash on northbound Interstate 25 near 136 Avenue is blocking lanes.
At 12:35 p.m., the Thornton Police Department tweeted that the northbound lanes were shut down in the area - but asked motorists to move to the left, implying traffic was still getting by the crash.
The right lane was still blocked at 4:15 p.m., according to the Colorado Department of Transportation. The wreck was cleared a little later.
CDOT said multiple vehicles were involved in the crash. We are working to confirm more details about what caused the crash and whether anyone has been injured.