An Oklahoma Amber Alert has been issued for 4-year-old Chase Risner after he was forcibly abducted in Bryan County by his non-custodial father, local officials say. Anyone with information is urged to call 911 immediately. The incident happened at around 5 p.m. on Friday when Chase was abducted by force from his grandmother, who has custody of the boy. Chase may have been injured during the assault, according to the amber alert. The suspect has been identified the boy’s non-custodial father, Chance Risner. He’s described as a 38-year-old white male with brown hair and hazel eyes, standing 5 fe…