'Seinfeld' Star In Car vs. Bike Collision

UPDATE: Law enforcement sources tell TMZ Alexander was not "at fault" for the accident.

As for the condition of the kid, we're told he has a slight laceration on his head -- but he'll be OK.

TMZ has learned "Seinfeld" star Jason Alexander was involved in a car vs. bicycle collision in L.A. this morning -- but fortunately, no one suffered any major injuries.

Law enforcement sources tell us the bike rider is a 14-year-old boy who was on his way to school -- when he collided with Alexander's vehicle.

We're told the kid fell off his bike and suffered a few bumps and bruises. An ambulance arrived to the scene -- but the kid's parents decided they wanted to drive him to the hospital for evaluation.

We're told speed was not a factor in the collision -- neither were drugs or alcohol. Jason was not cited for the incident.

We're told Alexander "acted responsibly" after the crash -- and exchanged information with the kid's parents.