One man was killed and three Amish children were seriously injured Sunday when a motorcycle crashed into a horse-drawn buggy near Yellowstone Lake State Park in Lafayette County.

Eight other Amish riders, four of them children, suffered non-life-threatening injuries, Lafayette County Sheriff Scott Pedley said Monday. He didn't have details on the injuries.

Joseph M. Hendrickson, 21, of Blue Mounds, was pronounced dead at the scene of the crash on Highway F about seven miles southwest of Blanchardville in the town of Fayette.

The Sheriff's Office said Hendrickson, who was not wearing a helmet, was riding the motorcycle north at about 6 p.m. when he missed a curve, crossed the center line and collided with the southbound buggy being pulled by two horses.

One of the children in the buggy, Eli King, 7, was taken by helicopter to a Madison hospital with severe injuries. Information on his condition could not be obtained Monday.

Eli's parents, Eli S. King, 46, and Nancy King, 44, and their 4-month-old daughter, Nancy King, were taken by ambulance to a Madison hospital. The elder Eli King was in good condition Monday at UW Hospital, and the elder Nancy King were released from UW Hospital.

UW Hospital spokesman Aaron Conklin said he had no information that could be provided on other members of the King family.

The family is from Darlington. Another of the Kings' sons, Christopher King, 12, was taken to Lafayette Memorial Hospital in Darlington and later taken by helicopter to a Madison hospital.

Three other King children suffered minor injuries but did not need hospital care. Their ages were not available from the Sheriff's Office.

Pedley said the Amish population in Lafayette County has been growing for years and now numbers in the hundreds. Accidents between Amish buggies and motor vehicles were becoming more frequent, he said.

"The Amish community has done a fairly reasonable job working with us to enhance lighting equipment and reflective equipment on buggies," he said. "But unfortunately, because it's an emerging population, I anticipate we'll be seeing more of this sort of tragedy."

Along with having more horse-drawn buggies on the roads, Pedley said, Lafayette County has hilly terrain that produces areas where motorists can only see ahead for limited distances.

Also injured in the buggy were Jonas Miller, 45, Emma Miller 44, and Fanny Miller, 1, all of Fennimore. They were taken to Lafayette Memorial Hospital in Darlington, where they were treated and released.

The buggy was severely damage and one of the two horses had to be euthanized.