A 68-year-old Hamilton woman was seriously injured after her vehicle rolled in a ditch in County of Brant. It happened around 3:30 p.m. Tuesday on Highway 54. Police say the woman was driving a silver Honda vehicle when she failed to navigate the curve in the roadway. Her car entered the ditch and rolled over.She was transported to a local Hagersville hospital by paramedics with serious life-threatening injuries. She was then taken via Air Ornge to a Hamilton hospital for treatment. Investigators say speed is being considered as a contributing factor.