An adult pedestrian was killed after being struck by a vehicle on southbound Interstate 35 in Austin, Austin-Travis County EMS said.

Medics were called to the 8000 block of southbound I-35 at 12:21 a.m. and found the adult dead at the scene, EMS said.

Authorities warned drivers to expect closures and use alternate routes. No further details about the pedestrian or the driver were immediately available.