CONROE, TX (KTRK) --The big rig crash that closed I-45 southbound this morning near Conroe has been cleared from the roadway and traffic is flowing again.
The accident happened around 2:45am on the North Freeway's southbound lanes near Gladstell.
RAW VIDEO: Transtar captures moments after big rig crash
The driver of the big rig told Eyewitness News he lost one of the right front tires on the cab of his truck. This caused him to smash the 18-wheeler into a barricade.
The truck caught fire after the crash, sending huge plumes of black smoke into the air.
When firefighters arrived, they called for a Hazmat unit. Turns out the truck was carrying flour, so it was actually the fuel from the cab that was feeding the flames.
We're following this story on Eyewitness News. Watch for updates on air, online and on our mobile news app.
Keep checking back on this page to get real-time updates as this story unfolds. To get alerts for breaking news, download the abc13 news app for iPhone or Android. You can also get breaking news alerts sent to you by email.