Search dogs brought in to help locate missing 2-year-old

RIMROCK, AZ - The search continues Tuesday for a 2-year-old boy who went missing from a campground in northern Arizona early Sunday morning.

According to the Yavapai County Sheriff's Office, search supervisors plan to widen the scope of the search for Sylar Newton and at least five search dogs will be part of today's operation, along with several ground teams.

Sylar was last seen around 12:30 a.m. when he was sleeping in a tent at the Beaver Creek Campground, 47 miles south of Flagstaff.

He was with 37-year-old Christina Priem, his custodial mother. Officials say the boy's biological mother lives out of state and has been located and interviewed. Detectives are investigating Priem's claim she was in the process of adopting Syler.

Polygraph examinations had been scheduled for Monday, which authorities say are typical procedural matters under the circumstances.

Sylar went missing from a tent in which Priem, her mother Nancy Collins and Priem's 12-year-old daughter were sleeping. Priem's 14-year-old son and a friend were sleeping in an adjacent tent. Priem reportedly discovered Sylar missing at 1:45 a.m.

Some of the approximately 25 campers in the area helped search for Sylar and authorities say some of the water pools along the nearby creek are five feet deep. Divers and swift water rescue teams continue to search these areas.

Authorities are asking anyone with information in the case to contact YCSO at 928-771-3260 or through the YCSO website .