HOT SPRINGS - Clinton Phelps, 28, of Hot Springs is accused of driving drunk and killing his two 6-year-old children in a one-vehicle rollover Monday.

Fall River County State's Attorney Jim Sword filed court charges Wednesday accusing Phelps of vehicular homicide, vehicular battery, driving under the influence or an alternative count of driving a vehicle with .08 percent or more by weight of alcohol.

Both Faralynn Marie Phelps and Adrian Harlan Phelps were ejected from the vehicle during the 9:20 p.m. accident on Cascade Road about 2 miles south of Hot Springs. The South Dakota Highway Patrol said Clinton Phelps lost control of the vehicle, and it crossed the road into a ditch, landing on its top. He wore a seat belt and suffered non-life threatening injuries.

The girl died at the scene of injuries. The boy died Wednesday at Rapid City Regional Hospital on what would have been his sister's seventh birthday.

According to Fall River County Court documents, crash investigation reports show that Phelps' breath analysis tested at .195 percent alcohol. Two blood samples, drawn at different times, showed blood alcohol levels of .20 and .177.

The legal limit in South Dakota is .08 blood alcohol.

A wake will be held at St. Anthony's Catholic Church at 7 p.m. on Friday, Aug. 28. Funeral services for Faralynn Phelps and Adrian Phelps are planned at 2 p.m. on Saturday, also at St. Anthony's.