A Columbia woman died in a Monday night single-vehicle crash, police said.

Howard County police were called to the 5600 block of High Tor Hill in Columbia at about 9:30 p.m. for a report that a truck had hit a tree. Police said Michele Lorenz was driving a 1999 Dodge Dakota truck when it left the roadway and struck a tree.

Lorenz was not wearing a seat belt, said police, who believe speed and failure to stay in a single lane were the primary causes of the crash. Lorenz, 42, was pronounced dead at the scene.