Police took a man into custody Wednesday night after a stabbing at SW 9th Avenue and Alder Street.
Preliminary information indicates that the stabbing occurred inside a parked car on the street at 9:44 p.m.
Police said a man in his 60s was discovered at the scene with a stab wound on his head. He was transported to a Portland hospital with a traumatic but non-life threatening injury.
The suspect, a man in his 20s, was also found at the scene and was taken into custody, police said.
Officers said the suspect was suffering from an unknown medical issue and was being treated at the scene.
No additional information was immediately available.