Female Indiana high school teacher filmed by students 'snorting cocaine' in the classroom (Details, pics)

A high school English teacher has been arrested after being filmed snorting what appeared to be cocaine in her classroom.

Samantha Cox, 24, was marched out of Lake Central High School in St. John, Indiana, in handcuffs after students showed the video to other staff who called police.

It showed her cutting up a white, powdery substance on a binder then turning her back to the door to lean over it.

There were no students in the classroom at the time and Cox did not know she was being filmed through the window pane in the door.

She now faces felony drug possession and misdemeanor paraphernalia charges. She was released from Lake County Jail on Wednesday after posting $1,000 bond.

It is not clear how long she had been working at the school when the video was filmed last week.

Some students were outraged by the display.'She was all the way in the corner where she thought we can't see her,' John Rogers told CBS.

'She tried to hide herself. She wasn't at her desk where we could see her.

He is one of Cox's students. Others were more concerned about her wellbeing.

'It is like a serious thing. A lot of people can get addicted to a lot of things, and something like this is, it's very heartbreaking,' student Michael Sanchez said.

The school said it was grateful for the students who brought the video to their attention.

It is not known when Cox is next due in court.