A former Kansas elementary school teacher was arrested this week and charged with child sex crimes.

Kourtnie A. Sanchez, 25, was arrested Monday on charges including electronic solicitation, unlawful sexual relations, solicitation of unlawful sexual relations and three counts of promoting obscenity to a minor.

Sanchez - who is believed to be a mother-of-three - was a student teacher at Marshall Elementary School in Eureka during the fall 2014 semester.

Prosecutors allege her victims were aged between 15 and 17, and that the alleged incidents occurred over five months in 2014.

However it is unclear how many victims there were.

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Charged: Kourtnie A. Sanchez, 25, was arrested Monday on charges including electronic solicitation, unlawful sexual relations, solicitation of unlawful sexual relations and three counts of promoting obscenity to a minor

Obscene: Sanchez was a student teacher at Marshall Elementary School in Eureka during the fall 2014 semester, when the alleged incidents' occurred

Married: Sanchez - whose maiden name is Olsen - is married and is believed to have three children. She will next appear in court on May 8

Selfie: The former student teacher is seen here in photos from her Facebook account, which has now been deactivated. She left her position in December 2014

Brief: Sanchez looked sullen during her first court appearance on Tuesday March 31, 2015

Sanchez - whose maiden name was Kourtnie Olsen - was never employed by the district because she was a student teacher through a college program.

However she still coached some junior high sports for the school for the past two years.

She coached junior high girls' volleyball and basketball, even though she was not a certified teacher, so was not permitted to coach, according to KAKE.com.

The school said she left in December following a 'situation', but would not elaborate.

Sanchez looked sullen during her first court appearance on Tuesday.

The history log of her Snapchat - a cellphone App that allows users to send photos and videos to each other that expire after seven seconds - have been listed as part of the complaint.

She made a fast exit as soon the brief hearing had finished.

Scene: Sanchez was a student teacher at Marshall Elementary School in Eureka, Kansas, and also coached volleyball and basketball at Eureka Junior High School (pictured)

Eureka resident Andrew Bratton called the allegations atrocious.

'Anybody who would mess with kids, I have a pretty low opinion of,' Bratton.

'If there's a word lower than low, that would be my opinion of it.'

Sanchez is currently out of jail on a $50,000 bond.