Slick road and excessive speed are said to be factors in a single-vehicle crash that killed a New Iberia woman Monday afternoon.

St. Martin Parish Sheriff's Office spokeswoman Maj. Ginny Higgins reported 34-year-old Zella P. Morris was killed when her car struck a tree while travelling on Duchamp Road in Broussard around 1 p.m. Monday.

Higgins said the preliminary investigation indicates weather and speed were factors in the crash. The investigation remains ongoing.