Update 2:53 PM: Traffic remained backed up for several miles Thursday afternoon. We've had no word that the scene has been cleared.

For the second time Thursday, traffic was backed up along southbound Interstate 35 after a traffic collision near mile marker 308 in Troy.

Shortly after 2 PM, TxDOT's Jodi Wheatley reported that a three-vehicle crash was blocking the inside lane of southbound I-35 near Main Street. Drivers were being diverted to access roads while emergency responders worked to clear the scene.

We'll update this story with new information as it becomes available. Meanwhile, drivers who planned to head south along I-35 through Troy should take an alternate route, such as Highway 317.

Traffic was also backed up Thursday morning after a pickup truck and an 18-wheeler collided in the same area.