At about 11:30 p.m. Wednesday, officers responded to reports of shots fired in the 200 block of Yesler Way.
When police arrived at the scene, they found an 18-year-old man and 13-year-old boy with gunshot wounds to the leg. They were taken to Harborview Medical Center.
Police did not release any suspect information.
On Thursday, a hospital spokesperson told FOX 13 that the 18-year-old was in the ICU and the 13-year-old was in satisfactory condition.
Anyone with information about the shooting is asked to call the Seattle Police Department's violent crimes tip line at 206-233-5000.