PORTLAND, N.D. — A man driving a John Deere 3020 died after the tractor rolled onto its top near Portland about 5:13 p.m on Friday, July 12, according to North Dakota Highway Patrol.

The tractor, driven by a 77-year-old man who has not yet been identified, was pulling a sickle mower that was cutting grass for hay. As the driver turned to travel around a culvert opening in the bottom of the ditch, its front right tire encountered a sinkhole.

The tire dropped into the hole, causing the tractor to roll and crush the driver. He died at the scene.

According to the patrol, the tractor was not equipped with a roll bar or cab.