ROUND ROCK, Texas - Round Rock police are investigating Thursday's fatal multi-vehicle crash on southbound I-35.
A 23-year-old woman died in the crash that happened around 7 a.m. March 18 north of the Round Rock Avenue Bridge.
Police say investigators are looking to speak with a driver who was pulling a dark-colored trailer on that section of highway around 6:30 a.m. that morning. Investigators are also hoping to speak with any witnesses.
Anyone with information about the crash is asked to contact Sgt. Brian Quick at 512-278-3257 or submit an anonymous tip online.
According to Total Traffic Austin, the crash was between 620/Exit 252 Round Rock Road and McNeil Road on southbound I-35. Traffic was diverted to McNeil Road while first responders were on the scene. I-35 was shut down for several hours.
It's not clear if anyone else was injured in the crash. The cause of the crash remains under investigation.