Some of the Muslim students who were arrested last year at the University of California, Irvine, for disrupting a speech by Israeli Ambassador Michael Oren have been subpoenaed by a grand jury, their attorney said Friday.

At least six of the 11 students arrested Feb. 8 for protesting during Oren's speech appeared before the panel, and some were questioned by an investigator from the Orange County district attorney's office, attorney Carol Sobel told The Associated Press.

Susan Schroeder, a spokeswoman for the district attorney's office, declined to comment.

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