A grand jury indicted a middle school teacher in Caldwell County, North Carolina, on five felony counts of taking indecent liberties with a child.

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WSOC-TV reporter Dave Faherty was there as authorities brought in 29-year-old Justin Biggs.

Police said Biggs has resigned from his teaching position at William Lenoir Middle School.

Lenoir police said they began their investigation in November after a female middle school student reported being assaulted on school grounds. The investigation led to more students coming forward, totaling five, according to police.

The indictments said Biggs, who was a math teacher and softball coach at the middle school, committed a lewd act on a child.

Police said all of the incidents happened on school grounds.

"It's hard on the school and the children there,” Lenoir police Capt. Brent Phelps said. “These are tough cases."