Birthday party shooting — Portland police said two people were shot outside a birthday party. Authorities said Saturday that a 16-year-old boy received traumatic injuries and was listed in critical condition. A 23-year-old man sustained nonlife-threatening injuries. Police said uninvited people showed up and were denied entry to the birthday party. They stayed in the area, and eventually a disturbance broke out just after midnight. Authorities are searching for two or three people who fled after the shooting. A 20-year-old friend of the teenage victim was arrested on a charge of unlawful possession of a firearm after police found two handguns in his vehicle. Authorities do not believe he was one of the people who injured the victims.