A medical episode behind the wheel ended with a truck crashing into a house in San Mateo Saturday evening.
Police aren't saying what exactly the medican episode was but the driver was rushed to the hospital, officials said.
There were three people inside the home when the accident happened but no one was injued.
All lanes on Alameda de las Pulgas were closed between Barneson Avenue and Hobart Avenue as San Mateo police investigate traffic incident.
No additional information was immeditaly available.