A Nevada man is facing charges after he and his two children were found suffering from the effects of scorching heat in a vehicle in the desert, according to an arrest report.

Brian Laugeson's children -- a boy and a girl whose ages were not released -- were going in and out of consciousness when they were found by Henderson Police Department officers Monday. The temperature was 105 degrees, the arrest report states.

Dangerously high temperatures that have proven deadly in multiple states are expected to remain for several more days, forecasters say.

Laugeson, who is separated from the children's mother, had custody of them for the weekend, according to the police report. He was reported missing along with his children, and officers tracked his location using his cell phone.

The police report says the children "were naked and visibly suffering from heat-related illnesses," with one child having a seizure. Laugeson and the children were hospitalized. A court-ordered blood test indicated that Laugeson "had ingested illegal narcotics," the arrest report states.

He has been charged with two counts of first-degree child abuse or neglect with substantial bodily harm.

Court records do not list an attorney for Laugeson. The Clark County court docket shows he is scheduled for a pretrial custody hearing Wednesday, but Henderson Hospital did not immediately return a request for information on whether he has been released from the hospital.

At the time the police report was filed, Laugeson was unconscious, and his children remain hospitalized. CNN asked St. Rose Dominican Hospital for information on the children's conditions Tuesday, but did not receive an immediate response.

Henderson is about 15 miles from Las Vegas.