A Fairfield man faces DUI and vehicular manslaughter charges after police say he caused a crash that killed three children and injured two adults east of Hot Springs Landing.

The crash occurred around 1 a.m. Saturday on Highway 20, according to a news release from the Blaine County Sheriff’s Office.

Police said Matthew Park, 46, was driving a Dodge pickup west on the highway when he rear-ended a Dodge Neon stopped for construction. The Neon was driven by Somchai Ray Lee Lurak, with passenger Emma Weigand, both 26 of Mountain Home. Also in the car were three children, including 3-year-old Drayka Rayshell, and a 5-year-old child and 6-year-old child. They were not identified in the sheriff’s office post, but according to the Ada County Coroner’s Office, they were siblings.

Police believe Park was intoxicated at the time of the crash. According to a criminal complaint filed against him, his blood-alcohol content was recorded as being 0.189 and 0.191.

The 5- and 6-year-old children died at the scene of the crash, according to the Ada County Coroner’s Office. First responders took Drayka to St. Luke’s Regional Medical Center in Boise. She died in the hospital not long after 7 a.m. Saturday, according to the coroner’s release.

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Lurak was flown by air ambulance to another hospital and is in critical condition, according to the Blaine County Sheriff’s Office’s release. The case’s criminal complaint states he had neck and back injuries. Weigund has since been taken to Saint Alphonsus Hospital in Boise for treatment for her injuries, including a broken arm, according to the complaint.

Park appeared to be uninjured and declined medical help, according to the Blaine County Sheriff’s Office. He was arrested on suspicion of two counts of aggravated driving under the influence and three counts of vehicular manslaughter. He appeared in court Monday, and a judge scheduled his next court appearance for Aug. 22.

The investigation is ongoing, and Idaho State Police is assisting the Blaine County Sheriff’s Office in reconstructing the accident.

A GoFundMe campaign has been set up to help the family, called “Our Family” and co-organized by Amanda Lurak.