Teen Offenders Caught After Knocking Out Guard Six teenage boys are back in custody after police say they knocked out a female guard in the violent offender wing of a Washington juvenile correction facility, stole her keys and radio and then fled into the woods. Staff at the Echo Glen Children's Center in Snoqualmie, Wash. alerted the King County Sheriff's Office at 11:30 p.m. on Saturday after the female guard was found by inmates unconscious in a locked room. Authorities from the sheriff's office, Washington State Patrol and Snoqualmie Police Department quickly mobilized to search the wetlands that border the facility, which is 25 miles east of Seattle. The six escapees, three 14-year-olds and three 15-year-olds, were spotted in the woods by a sheriff's office helicopter equipped with infrared.The teens the broke off into groups of two, trying to evade capture, West said. "They were trying to get out of the woods and into the residential area," she said. Deputies in the helicopter were able to direct deputies on the ground, who were using dogs from the K-9 unit, to where the teens were hiding. One teen was bitten by a police dog while trying to escape arrest. The other five boys were arrested without incident and booked on charges of assault, unlawful imprisonment and escape. West said most of the boys were serving time for assault, firearms and burglary charges. Echo Glen is a medium/maximum security facility, however it is not fenced. It houses younger male offenders and is the only institution for female juvenile offenders in Washington, according to the Washington State Department of Health and Social Services. ABC News Radio contributed to this report