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Divers search Arkansas river for missing 4-year-old Boy Scout

Caleb Linn is seen in this undated photo provided by the Arkansas State Police. Rescue crews are searching for the 3-year-old boy who went missing Saturday, March 24, 2012 from a Boy Scout camp in northeastern Arkansas.

Caleb Linn is seen in this undated photo provided by the Arkansas State Police. Rescue crews are searching for the 3-year-old boy who went missing Saturday, March 24, 2012 from a Boy Scout camp in northeastern Arkansas.  (AP/Arkansas State Police)

Police and volunteers are searching in and along a northeastern Arkansas river for a 4-year-old boy who went missing from a Boy Scout camp over the weekend.

Fulton County Sheriff Buck Foley says more than 150 people are searching for Caleb Linn, who disappeared Saturday morning at the Kia Kima Boy Scout Camp near Hardy.

Authorities say Caleb was last seen leaving the cleanup site to try catching up to several boys who had left for the campsite about half a mile away.

Police initially said Caleb is 3 years old but the sheriff's office says he is 4. Authorities say the group was not affiliated with the Boy Scouts.

Caleb is from Springdale, which is 150 miles west of Hardy.