MINOT (AP) - About 100 horseback riders spread out through roads and ditches in four townships north and east of here Saturday, looking for signs of 3-year-old Reachelle Smith, now missing more than two weeks. Their search ended without success, Ward County's chief deputy said.

"We searched everything we had set out to search this morning, and very little results … nothing that I can really link to this," Chief Deputy Dave Bosh said Saturday night.

Authorities said the search was in an area where Leigh Cowen was reported to have driven along back roads.

Reachelle, who has been missing since the night of May 16, was believed to be with Cowen, 22, but when his body was found in a van in the Upper Souris Wildlife Refuge last week, there was no sign of her. Authorities said he apparently killed himself.

"We've had local landowners file reports that his van was seen in this area," Bosh said of Saturday's search area. Horseback riders would have the chance for a broader look, he said.

Some of the riders came from as far away as Marshall and Detroit Lakes, Minn., he said. One couple arrived Friday night and slept with their horses, searched all day and then headed back home for a graduation party today, he said.

Bosh said the search for Reachelle now will be "lead-driven."

"If more information comes in about a specific area, we will follow up," he said. "We've got all the information recorded. We'll go back and compile it."

The riders started before 9 a.m., seeking to cover about 250 miles of roads and ditches.

Twenty-four horses were assigned to each of the four townships, and the groups were then broken down into teams of four, Bosh said.

"Two go on either side of the road - go up to the end and come back down another road," he said.

The Red Cross provided food and drinks to the riders, he said.