A pedestrian was left with life-threatening injuries Tuesday, after he was struck by a cyclist as he crossed the street.

Police say the collision occurred at 8:30 Tuesday night, at the intersection of Third Street and Palou Avenue in the city's Bayview District.

According to the San Francisco Police Department, the pedestrian, a 55-year-old man, "jumped off a Muni platform and ran across the street." The cyclist, a 36-year-old man, "collided with [the pedestrian], causing life threatening injury to [the pedestrian]."

The pedestrian was transported to San Francisco General Hospital for treatment of his injuries. Police say that the cyclist, who was also injured, was treated at the scene and released.

Citing the ongoing investigation into the collision, police did not provide details on which party had the traffic signal at the time of the crash. They did confirm, however, that no one was arrested at the scene, nor have either of the men been cited.