Police spokesman Jeff Kappel said a Lexus carrying two men pulled up to a man standing near the intersection of 23rd and Union around 9:25 p.m. An argument ensued, and one of the men in the car pulled out a gun and shot the man on the sidewalk.

The man was shot in the leg, Seattle fire officials said. He was rushed to Harborview Medical Center with life-threatening injuries. His name is not known.

After the shooting, the men fled in their car, Kappel said. While trying to get away, they crashed into a parked car near the intersection of Rainier Avenoue South and Letitia Avenue South a few minutes later.

An elderly couple who were sitting inside the parked car were taken to Harborview though they did not appear to be seriously injured.

After their car crashed, the men, who are both in their 20s, tried to flee on foot. But a canine officer bit one man and officers stopped the other, and both were taken into custody.

It is unclear what prompted the shooting or whether the gunman and the victim knew each other.

The investigation is ongoing.