A 37-year-old man has died from injuries he sustained in an ATV accident about 6:45 p.m. Sunday in the Mountain Lakes subdivision in Bluff Dale.

William Lee Schoppe of Bluff Dale was killed in the accident. His two young children sustained  injuries and were transported by air ambulance to Cook Children’s Medical Center in Fort Worth. 

The children are listed in stable condition, according to the Erath County Sheriff’s Office. 

The Texas Highway Patrol is assisting the sheriff’s office with the investigation.

“Investigators believe speed and alcohol contributed to the accident,” states a release from the sheriff’s office. “Investigators found no evidence to prove anything other than operator error to be the cause of the crash.”