A motorist died Monday after colliding with a semitrailer truck that was blocking traffic Monday night in Alexandria, Minn.

Police identified the motorist as Arlys Hendrickson, 83, of Alexandria.

Hendrickson was headed west on the the 2600 block of W. 34th Avenue when she collided with the semitrailer truck about 7:45 p.m., said Alexandria Police Chief Scott Kent.

The eastbound semi was blocking both lanes of traffic when the crash happened, but it was not clear why, Kent said.

A witness told police it was dark at the time of the crash, making the trailer hard to see.

Hendrickson was pronounced dead at the scene. The truck driver, a 39-year-old man from Florida, was not hurt.