Mark Curran, who was accused of sexual harassment for kicking an alleged bully in the groin, will be moved to a new school.

BOSTON (CBS) – A 7-year-old boy is being investigated by his South Boston elementary school for possible sexual harassment after kicking another boy in the crotch.

UPDATE: Boy To Be Transferred To New School

The first grader’s mother, Tasha Lynch, says she was shocked by the school’s decision.

“He’s 7 years old. He doesn’t know anything about sexual harassment,” she said.

Lynch’s son, Mark Curran, said the boy that he kicked had been bullying him on the school bus ride home from Tynan Elementary last week.

WBZ-TV’s Christina Hager reports

“He just all of a sudden came up to him, choked him. He wanted to take his gloves, and my son said, ‘I couldn’t breathe, so I kicked him in the testicles,'” said his mother.

Lynch described a phone call she received from the school explaining that the case will be treated like sexual harassment, due to what it considers inappropriate touching.

“‘Your son kicked a little boy in the testicles. We call that sexual harassment,'” Lynch said the school told her.

She said she’s been asked to attend a disciplinary hearing at the school Monday.

A Boston Public Schools spokesperson said officials are investigating, but won’t comment further, since it’s a private matter.

Lynch wants an apology and better supervision on the school bus to prevent such fights among students.

“He couldn’t breathe. He was trying to defend himself,” she said. “I don’t find that sexual harassment. I find that defending himself.”