CONSTANTINE TOWNSHIP, Mich. (WOOD) — Two people are dead after a crash between a pickup truck and a semi-truck on US-131 Thursday morning, police say.

It happened around 10:15 a.m. on US-131 near Youngs Prairie Road in Constantine Township, the Michigan State Police said in a release. It said a northbound pickup truck crossed the centerline and hit a southbound semi-truck head-on.

Both the driver and passenger of the pickup truck were pronounced dead at the scene, MSP said.

State police identified the driver and passenger as father and son — 58-year-old Albert Richard Fields Jr. and 15-year-old Albert Richard Fields III, of Middlebury, Indiana.

Police say the semi-truck driver, a 30-year-old California man, was brought to a local hospital for injuries.

MSP troopers do not believe drug or alcohol factors.

The crash remains under investigation.