4 more accused of taking college admission exams for students

(CNN) - More Long Island students were arrested Tuesday in an ongoing investigation of a college admission exam cheating scandal that has expanded to include the ACT, according to prosecutors in New York's Nassau County.

"Our office exposed a gaping hole in standardized test security," District Attorney Kathleen Rice said.

The investigation unveiled nine students who paid four men to take the SAT or ACT standardized exams for them between 2008 and 2011.