Caltrain suspends service between SF and Millbrae to upgrade trains

Caltrain has suspended its weekend service between the San Francisco and the Millbrae stations to upgrade its trains.

The commuter agency is getting rid of its diesel-fueled trains and upgrading to a more modern electric train system. 

Trains won't be running between the two stations next weekend either. 

Caltrain passengers are being urged to use other mass transit systems such as BART.