UPDATE 6:32 p.m. Tuesday: A hazmat spill caused by four commercial vehicles, including a semi-truck tanker hauling gasoline, colliding into one another on Interstate 70 near Dotsero early Tuesday morning is being cleared up.

The westbound lane, which has been closed in Glenwood Canyon since 7:40 a.m., is now open.

Colorado State Patrol Public Information Officer Gary Cutler reported no injuries. The cause of the collision, however, has yet to be determined.

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The tanker hauling the hazardous material spilled 3,000 gallons of gasoline onto the interstate. The closure was extended all day so crews could drain and transfer 7,000 gallons of gasoline remaining in the tank.

Colorado Department of Transportation spokesperson Elise Thatcher told the Post Independent around 5:25 p.m. that potential hazmat impacts to the surrounding landscape, including the Colorado River, are still being assessed.

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“CDOT will be assisting with hazmat clean up where necessary,” she said.

Colorado Parks and Wildlife spokesperson Rachael Gonzales told the Post Independent at 5:40 p.m. that the CPW has not seen any fish kill so far after the spill.

“We also didn’t see any sheen of the gasoline in (the Colorado River), so if any did go in there, we don’t know how much,” she said. “But we will keep an eye out if people start to call.”

For additional updates on the closure go to https://www.cotrip.org and look under alerts.