BOWIE, Ariz. (AP) _ The death toll from a deadly chain-reaction freeway pileup rose to 10, police said Tuesday, with the deaths of two children.

Twenty-two people were injured in the accident, which occurred during a blinding dust storm Sunday on Interstate 10.

Twenty-three vehicles piled up on both sides of the highway when the winds common to Arizona this time of year created a dust storm so thick drivers couldn't see.

Eight people were killed Sunday, and a 5-year-old boy and 13-year-old girl died Monday night.

Officials identified the children as Brent Dirickson, 6, and April Dirickson, 13, both of Deming, N.M.

Their parents, Bobby, 48, and Debbie, 32, and brothers, Chris, 17, and Michael, 8, were in fair condition Tuesday at Tucson Medical Center. One other crash victim also remained hospitalized in fair condition, said hospital spokesman Robert Johnson.

Investigators believe a car carrying the Dirickson family hit the back of a truck and was struck by a recreational vehicle. That set off the series of crashes that killed the other eight people.