PINE BLUFF, Ark. - A woman who worked at a state prison and her four young children were killed when their car was struck by an 18-wheeler, and the truck driver was jailed on pending charges.

Roy Lee Jordan, 57, of Benton, Miss., was arrested after Saturday's crash on U.S. 425 four miles south of Pine Bluff. He was jailed in Jefferson County and was scheduled to appear in court Monday, a jailer said.

LaKetria Wells, 26, of Monticello was killed along with her children: LaKiyah Wells, 7; Kaleb Jarrell Stokes, 5; Keyshon Wells, 4; and LaKayla Wells, 2. The woman had been a correctional officer at Cummins prison since April 2006, according to state Correction Department spokeswoman Dina Tyler.

"To have all of them go at once, and in the manner they did, I tell you, everyone out at that scene, from the EMTs to the firefighters to our troopers hurt for that family," Arkansas State Police Sgt. David Sims told the Arkansas Democrat-Gazette.

Blood and urine samples were taken to the state Crime Laboratory in Little Rock for drug and alcohol screening, state police said.