HOUSTON (KTRK) -- All westbound lanes of the Northwest Freeway are blocked due to an accident involving two heavy trucks.
The accident happened after 3am on Highway 290 at Jones Road.
It's unclear how the accident happened but it did involve two rigs. Hazmat crews are working to offload materials and then the heavy duty wreckers will remove the trucks.
There is no word of any injuries.
It's unclear when the freeway will be reopened. All traffic is being detoured to the frontage road at the Jones exit.
We're monitoring the traffic tie-up and will have the very latest on Eyewitness News This Morning. You can also get a live traffic map on abc13.com and on our free mobile apps.