At 3:15 AM, Sunday, CHP Redwood City, Palo Alto FD and Mountain View FD responded to reports of a multi vehicle traffic collision on the 101 near San Antonio. Initial responding units arrived to find a traffic collision on the Northbound 101 at Rengstorff, as well as a second part of the collision roughly 1/4 mile north. Upon investigation, additional resources were requested when firefighters found a motorcyclist trapped under both the bike and another vehicle at the northern part of the crash. It took firefighters less than 10 minutes to extricate the motorcyclist, once the truck arrived. He was treated by paramedics and transported to a nearby trauma center in unknown condition. See SOT with Battalion Chief Davis, Palo Alto FD. Unknown at this time if alcohol or speed played a role in the crash. CHP Redwood City is handling the investigation.