Nine of those people were transported to the hospital.
PHOTOS:At least 14 injured in Ace Train derailment in Sunol
Alameda County Sheriff's Department spokesman Sgt. J.D. Nelson said the Altamont Corridor Express (ACE) train No. 10 went off the tracks near Niles Canyon Road in a rural area of Alameda County and became partially submerged in the water.
There were 214 passengers on the train. Most of the passengers were able to get themselves off the train, uninjured.
ABC7 News spoke with an Alameda County fire captain who made up a secondary search team along with others, combing through the derailed car for anyone who might have been missed. "You're focused, you're trying to do the best job you can, looking at all the void spaces and you're really hopeful that there's not anybody there, but you're double checking that everything is right and safe," Alameda County Fire Department Capt. Seth Anderson said.
ABC7 News spoke to a witness who was in the back of one of the trains and he said it felt huge jerks while he was sleeping and that woke him up.
Passengers who evacuated the train walked two miles down the tracks to a waiting area off Niles Canyon Road where they were given blankets while they waited for shuttle buses to pick them up.
Many said the tracks sounded strange right before the crash, almost silent. The impact of the crash sent passengers flying inside the car, which derailed. "At that moment I realized something was wrong, so I held onto the rails and right then the train flipped over," passenger Jay Vijayen said.
Fremont police said Niles Canyon has been closed as several agencies investigate the collision involving a commuter train in the canyon.
Road Closure - Niles Canyon is Closed https://t.co/uUkjfy0QEy— Fremont Police Dept (@FremontPD) March 8, 2016
According to ACE Train, there will be no service on Tuesday due to the derailment.
attention all ACE passengers. There will be no service tomorrow 3/8/16. No ACE train will be operating tomorrow. Thank you.— ACE Train (@ACE_train) March 8, 2016
Around 8:40 p.m., Alameda County Fire Department officials tweeted that all passengers were removed and are being assessed.
The uninjured passengers are being transported to the Alameda County Fairgrounds in Pleasanton where they can be picked up.
Sunol Update: 14 injured (10 minor, 4 serious/non-life threatening). Non-injured passengers will be transported to @ACFair.— Alameda County Fire (@AlamedaCoFire) March 8, 2016
ACE Train Derailment Details:— Sergio Quintana (@svqjournalist) March 8, 2016
-Train hit tree on tracks
-1 car rolled into creek
-No major injuries pic.twitter.com/J0obSkZd49
Sunol Update: all passengers have been removed from derailed train & are being assessed.— Alameda County Fire (@AlamedaCoFire) March 8, 2016
ACE 10 Derailment - Niles Canyon [[SHORT_URL]Ace 10 has been derailed in Niles Canyon. Emergency personnel has been dispatched.— ACE Train (@ACE_train) March 8, 2016
Ace 10 has been derailed in Niles Canyon. Emergency personnel has been dispatched. https://t.co/XrVw221xgq— ACE Train (@ACE_train) March 8, 2016
The Associated Press contributed to this report.