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Northbound Interstate 25 was shut down at 136th Avenue for more than an hour Tuesday evening after a crash.
The Thornton Police Department tweeted around 6:40 p.m. that all lanes had been reopened.
Thornton police said eight vehicles were believed to be involved in the crash, but no fatalities.
This is a developing story that will be updated as more information becomes available.
Elizabeth Hernandez: 303-954-1223, ehernandez@denverpost.com or @ehernandez

![20151207__denverpost~p1.jpg [prison 19] Caption: This is Cellhouse 1, Pod A, from ground level inside the Sterling Correctional Facility which is located outside of Sterling, Colorado Thursday afternoon. Photographer: LEW SHERMAN Title: FREELANCE Credit: SPECIAL TO THE POST City: Sterling State: CO Country: USA Date: 19990617 ObjectName: prison 19 Keyword: PUBDATE____1999_06_22](/wp-content/uploads/2016/04/20151207__denverpostp1.jpg?w=538)

