DES MOINES, Iowa — Authorities searched an Iowa lake again Monday for two missing girls whose bicycles were found nearby, but they suspended a massive sweep of the area that drew hundreds of volunteers over the weekend because the effort failed to produce significant leads.
Elizabeth Collins, 8, and her cousin, Lyric Cook-Morrissey, 10, were last reported seen Friday afternoon leaving their grandmother's house. Their bicycles and Elizabeth's purse were found later that day near a bike trail at the edge of Meyers Lake in the northeast Iowa city of Evansdale.
Black Hawk County Chief Deputy Rick Abben said local, state and federal authorities have been "grasping for straws" in the frantic search. A tip line turned up numerous reports of articles of clothing that had been found, but none belonged to the girls. He said it was as if they had just disappeared.
"It wouldn't be proper for me to stand here and tell you we have a theory because we don't," he said. "We have two missing girls and we have no idea why."
FBI spokeswoman Sandy Breault said the agency was working to get photos of the missing girls onto more billboards and websites. She said the bureau was sending in dogs trained to search for human scents in the area where the girls went missing.
Authorities have been dredging the lake and interviewing family, friends and registered sex offenders who live in the area. Abben said the case is still considered a missing persons investigation and there was nothing to suggest they've left Evansdale or had been abducted.
A search of a 12-mile radius drew nearly 1,000 volunteers Saturday and almost 900 Sunday, but there were no significant leads, Abben said. With the heat and people going back to work authorities decided not to do another large-scale search on Monday.
"Right now we don't feel putting more civilians on the street looking for us is going to be a benefit," he said.
Instead, rescue teams searched the lake by boat again Monday. Officers stopped cars at a number of intersections in town, questioning some drivers and searching trunks, the Waterloo-Cedar Falls Courier reported. Others passed out fliers about the girls.
Elizabeth's parents didn't immediately respond to calls Monday from The Associated Press, and Lyric's family couldn't be reached for comment. On Sunday, the mothers of both girls said they were trying to stay strong.
"Today I'm feeling pretty good," Misty Cook-Morrissey said Sunday. "Sometimes, when you think about it, you wonder if they're dead somewhere, but you try to push those thoughts out of your mind."
Cook-Morrissey said she was grateful for the community support in Evansdale, a Waterloo suburb in northeast Iowa.
"It's been good talking to people," she said. "It keeps your mind off of what's happening."
Cook-Morrissey said her daughter might have tried to swim at the lake, despite a swimming ban. She said the family swims at another nearby lake regularly, and described Lyric as a good swimmer.
Elizabeth's mother, Heather Collins, said it's rare for her daughter to venture too far from home, but she may have been persuaded by her older cousin.
"We've talked about that before," Collins said "We've told them they're too young to go far."
Misty Cook-Morrissey and Heather Collins are sisters.