According to Austin Fire, a tanker truck struck a median near William Cannon Dr. and southbound I-35 on Sunday.
Austin Fire said the truck's cargo was not leaking, but the fuel tank was. Crews were working to clean up the spill.
Austin Police said traffic was diverted to Stassney Lane, and I-35 closures were estimated at two hours.
APD said no injuries have been reported.
We will update this story with more information as it becomes available.