SHERIDAN, Mich. (AP) — Michigan State Police have identified the parents injured when a horse-drawn buggy and pickup truck collided, killing three of their children.

They say 40-year-old buggy driver Paul Martin of Sheridan was in stable condition Monday at a Flint hospital. His wife, 34-year-old Judith Martin, was in critical condition at a Grand Rapids hospital.

Police say seven of the couple's children were in the buggy when the crash happened Sunday near Sheridan in a part of central Michigan where many Amish live. Two sons, ages 12 and 7, and a 9-year-old daughter were killed.

Three sons, ages 8, 3½ and 2, remain hospitalized in Grand Rapids in stable condition. An 18-month daughter was released after hospital treatment.

Police say a 29-year-old man, also from Sheridan, was driving a pickup that crashed into the buggy's rear. The investigation continues.