OGDEN — A 26-year-old woman was killed Tuesday when she fell under a passing semitrailer.

Witnesses told police the woman was arguing with another person on the side of the road near 2550 South and 750 West about 1:50 p.m, Ogden police reported.

When the woman walked away from the argument and stepped into the road, she fell underneath the wheels of a slow-moving semitrailer as it passed by her, police said.

It was unknown Tuesday why the woman fell, but police are investigating a history of seizures as a possible cause.

The woman's name was not immediately released pending notification of family.

— McKenzie Romero