Three people are dead in separate highway mishaps in southwest Kansas, including a 4-year-old boy who was struck by an 18-wheeler in Ulysses.

The Highway Patrol said Ethan Rodenberg of Ulysses died shortly after 6 p.m. Tuesday when he was hit by the truck while riding his bicycle near downtown. Troopers say the child was crossing the street when he was struck.

In Finney County, 49-year-old Don Martinez of Garden City was killed when he was hit by a pickup truck at 6:40 p.m. Tuesday while walking in the westbound lanes of U.S. 50.

Troopers also reported 24-year-old Miranda Hale of Liberal died when her car was struck by an oncoming vehicle in Kiowa County.