Two children, a sister and brother, were killed Thursday morning when hit by a car while waiting for a school bus on U.S. 40 north of Heber City.

KILLED:Chrystal Ann Gibbons, 8, Heber City.

Quinton James Gibbons, 5, Heber City.

Utah Highway Patrol Trooper Doug Twitchell said the children were struck about 7:25 a.m. by a car driven by Jean Kip Deffendol, 19, Midway, Wasatch County. The vehicle apparently went off the road before hitting the two pedestrians, Twitchell reported.