Created: 4/12/2008 2:35:03 PM 
EUGENE, OR -- A father in Oregon is accused of raping girls as young as 14, with the help of his son.
Authorities say the two men are facing sex charges involving at least a half-dozen underage girls.
Police say 50-year-old Russell Hamblen and his 18-year-old son, Paul, worked together and used that partnership to victimize teenage girls at their home.
Investigators believe the improper relationships have been going on for at least two years.
The investigation began in 2007 when a girl told police. Police arrested Paul Hamblen and charged him with rape. The arrest led to new evidence implicating the father and the son and at least seven victims.
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