(AP) — Authorities have found empty alcohol containers amid the wreckage of a car in an accident that killed five cast and crew members of the musical drama “Texas.”

Department of Public Safety spokesman Christopher Ray said Wednesday he didn’t know if the containers were beer cans or liquor bottles or where specifically they were located.

DPS has said alcohol is suspected as a factor in Monday night’s crash when a car carrying six people ran a stop sign and collided with an 18-wheeler near Dumas.

A spokesman for an Amarillo hospital said Wednesday that Timothy Johnson of Houston, the only survivor from the car, remained in critical condition. The truck driver was stable.

Organizers canceled Wednesday performance. The show continues Thursday through Sunday to end the season.