PHILADELPHIA (AP) " The Latest on the Amtrak engineer involved in the fatal May 2015 crash in Philadelphia (all times local):

11:30 p.m.

An Amtrak engineer involved in a fatal train crash two years ago in Philadelphia has been arraigned on charges including causing a catastrophe and involuntary manslaughter.

Authorities say Brandon Bostian was arraigned late Thursday night and released on $81,000 sign on bond, which means he does not have to pay anything as long as he shows up for his court dates. If he doesn't, he would have to pay the full amount.

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Bostian was handcuffed by a detective as he arrived at a Philadelphia police station earlier Thursday with his attorney. He didn't respond to questions from reporters.

Eight passengers were killed in the May 2015 train derailment.

The case against Bostian was brought after a victim's family got a judge to order that charges be filed.

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10:55 a.m.

An Amtrak engineer involved in a fatal train crash two years ago in Philadelphia has turned himself in to police on charges including causing a catastrophe and involuntary manslaughter.

Brandon Bostian was handcuffed by a detective as he arrived at a Philadelphia police station Thursday with his attorney.

The train accelerated to 106 mph on a 50 mph curve May 12, 2015, derailing in a crash that killed eight people and injured about 200.

The National Transportation Safety Board found that Bostian essentially forgot where he was just minutes after leaving Philadelphia on his Washington-to-New York run.

Philadelphia prosecutors decided not to charge the 34-year-old engineer. But a judge acting on a complaint from a crash victim's family ordered misdemeanor charges filed. State prosecutors added a felony.