Family Hit by Car While Walking in San Antonio, Father and Son K - kcentv.com - KCEN HD - Waco, Temple, and Killeen

(KCEN) -- A father and his three-year-old son are dead after they and two other family members were hit by a car while walking alongside a busy San Antonio highway.

The family of four was walking on a sidewalk along I-10 and Foster Road when they were hit by a car.

The 31-year-old father was killed on impact.

His two children were taken to University Hospital where the three-year-old later died.

Their pregnant mother was also taken to the hospital.

Investigators say the driver hit a pole before running over the family.

They believe she may have been using her cell phone at the time of the crash.

So far no charges have been filed.