SAN FRANCISCO, Calif. (KRON) – A person was fatally struck Tuesday night by a northbound Caltrain in San Francisco, according to officials.

Around 7:15 p.m., a person was on the tracks at the Mission Bay Drive grade crossing when the incident occurred.

Emergency officials and a coroner arrived on the scene.

There were about 12 passengers onboard. No other injures were reported.

As of 9 p.m., all tracks were cleared for trains to move at maximum speed through the site.

The San Mateo County Sheriff’s Transit Police Bureau is investigating the incident.

At this time, it is unknown whether it was intentional. The cause of death and persons identification will be released at a later time.

“No matter what the circumstances, it is always regrettable when a life is lost. Caltrain reminds everyone to be safe around train tracks.“

This is the 10th Caltrain fatality this year.