Three people died and another four were injured in three motor-vehicle accidents Saturday and Thursday on Arkansas roads, according to preliminary Arkansas State Police fatal crash reports.

At 12:35 p.m. Saturday, a 1995 International tractortrailer was traveling west on Arkansas 18 at Big Lake Bridge in Manila when a vehicle stopped in front of it, the report said.

As the semi was stopping to avoid the vehicle, it slid sideways into the path of an eastbound 2000 Jeep sport utility vehicle driven by Melissa K. Payne, 33, of Dell, the report said. The SUV then struck one...