NORWALK - A Norwalk sixth-grader at Ponus Ridge Middle School is under arrest tonight after threatening his assistant principal on the Internet.

The student allegedly posted on his Facebook page that he wanted to "beat up and kill" Michael Pisseri, the assistant principal at his school.

Pisseri says he was informed about the threat by other students who had seen the Facebook post.

The student who allegedly posted the threat was questioned by Norwalk police and arrested for breach of the peace.