PLANKINTON, S.D. (AP) — A 67-year-old South Dakota man is dead following a rollover crash on Interstate 90 near Plankinton.

The South Dakota Highway Patrol on Wednesday said Delbert Ritter of Chamberlain was pronounced dead at the scene of the crash Tuesday.

Authorities say Ritter was traveling east on I-90 at a low speed because of vehicle trouble when his 2000 Chevy Venture van was struck by another van in the rear.

Ritter's van went into the ditch and rolled. Authorities say Ritter and his 13-year-old passenger were not wearing seat belts. Ritter's passenger, a 13-year-old boy, was hospitalized with serious non-life threatening injuries.

Authorities say the van that struck Ritter's was being driven by 51-year-old James Larson. The Mitchell man was hospitalized with serious non-life threatening injuries.

The Patrol says the crash remains under investigation.

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