AUSTIN (KXAN) — Austin Fire and Austin-Travis County EMS responded to a vehicle crash in south Austin Saturday night, according to both agencies.

Shortly before 9:30 p.m., AFD said on social media that crews were at the scene of an accident involving a transport truck and a sedan. The accident was in the 400 block of East Oltorf Street, near its intersection with South Congress Avenue.

The sedan was trapped under a transport truck, according to AFD. Firefighters extricated at least three people from vehicles at the scene.

ATCEMS said there were a total of five patients involved, with three patients taken from the scene by ambulance to area hospitals. One person was transported to Dell Seton with critical, life-threatening injuries, and two others were brought to St. David’s South with serious injuries.

Drivers should expect traffic delays and seek an alternate route.