Two people were transported to the hospital Tuesday, victims of separate collisions with vehicle drivers that left them injured.

In the first case, San Francisco Police Department spokesperson Officer Robert Rueca says that a 32-year-old female cyclist was struck by a hit-and-run driver at 5:40 p.m. Tuesday, near the intersection of Bay and Kearny Streets.

Rueca says that the cyclist was headed west on Bay when the driver of "a white vehicle" tried to pass her, and struck her instead.

The cyclist was knocked off her bike and injured, Rueca says.

The driver kept on going after striking the woman, continuing to travel west on Bay.

The cyclist was transported to San Francsico General Hospital for treatment. According to Rueca, a description of the suspect vehicle has been put out to officers, in hopes that the driver might be tracked down and prosecuted. The cyclist was transported to San Francisco Genera Hospital, for treatment of injuries police say are not life-threatening.

Just a few hours later, at 10:09 p.m., another collision occurred, this time at Market and Third Streets.

This time, police say, a 26-year-old man "fell into the street" and was struck by a passing vehicle. The victim was transported to San Francisco General Hospital, with injuries police say are not considered life-threatening.

Rueca says that the driver remained at the scene, and cooperated with investigators with SFPD's traffic collision unit, who are working to determine the exact circumstances of the crash.

Related: Ask A San Francisco Native: Have Bikes and Cars Always Hated Each Other?