Roads have reopened after a truck fire near the Lookout Mountain exit of westbound Interstate 70 caused some long delays for drivers Tuesday morning.

Colorado State Patrol first tweeted about the fire at around 9:45 a.m. It initially closed the two right lanes of the highway.

Traffic was reportedly backed up for at least 4 miles from the crash.

HAZMAT crews were on scene to remove gasoline from the vehicle in order to tow the truck from the road. Transportation officials said approximately 150 gallons of diesel fuel was on the road.

It’s unclear what caused the truck fire. No one was injured and the driver is okay.

As of 11 a.m., emergency crews were still attending to the vehicle, which was visibly burned.

“Take care and drive with caution,” Colorado State Patrol wrote on Twitter.