Emergency personnel responded to a three-vehicle crash at the intersection of Route 3 at Park Street in Waterloo shortly before 9 p.m. Monday.

Waterloo police and fire department personnel joined Monroe County EMS in responding to the crash. The vehicles involved were a blue Ford sedan, red Chrysler sedan and blue GMC truck.

Police said Norma Reheis, 80, of Waterloo, was transported by ambulance to a St. Louis hospital for treatment of minor injuries.