Four people were injured Saturday in three separate accidents, according to police reports.

Shortly after 5 p.m. emergency personnel responded to a two-vehicle accident two miles west of Grove on Oklahoma Highway 125.

According to Trooper James Loftis of the Oklahoma Highway Patrol, a 1989 Harley Davidson motorcycle driven by David Lewis, 31, of Joplin, Mo., was traveling south when he failed to negotiate a curve, crossed the center line and struck a 1999 Ford, driven by Christina Salvador, 21, of Chelsea.

Lewis was airlifted to a Joplin hospital with multiple injuries and listed in serious condition.

Salvador was transported to Integris Grove with minor injuries.

At approximately 7 p.m. a Wichita, Kan., man was airlifted to Joplin after crashing a 2005 Honda two miles east of Bernice.

According to the accident report, Michael White, 52, was jumping a hill on private property when he was thrown from his off-road vehicle.

White sustained multiple injuries and was listed in serious condition.

At approximately 11:40 p.m., a 27-year-old Miami man was thrown from his motorcycle two miles north of Afton on Highway 69.

Authorities say Kevin Lee Summerlin was traveling northbound on a 2005 Harley Davidson when he hit a deer in the road.

Trooper Will Langley said Summerlin was thrown from his motorcycle approximately 15 feet from the point of impact.

H was airlifted to a Joplin hospital with multiple injuries and listed in stable condition.