A husband and wife died when their pickup truck rolled into a ditch near their east-central Minnesota home and became partly submerged in the water, authorities said Wednesday.

A caller alerted the Aitkin County Sheriff’s Office about 9:50 a.m. Tuesday to the vehicle upside down in the ditch along 280th Place in Lakeside Township just east of Lake Mille Lacs.

By the time emergency response personnel arrived, both occupants were dead, the Sheriff’s Office said.

The two were identified as Paul Debreto, 64, and Teresa Debreto, 60, who lived close to the crash scene. Preliminary autopsy findings determined that they likely died from hypothermia, the Sheriff’s Office said.

The Sheriff’s Office said it has yet to determine who was driving.