On February 8 at University of California-Irvine, a number of protesters heckled Israel’s ambassador to the US Michael Oren, apparently in excess, which caused several students to be arrested. So, when all was said and done 8 UC-Irvine and 3 UC-Riverside students were arrested (although the video below says 12 were arrested, these were the numbers I found most prevalent).
Here’s a clip from the ocregister.com, which can also be viewed here:

Everybody’s screaming at everybody, and it’s all what we’ve grown to expect. But I ultimately want to know, what crime did these students commit? Wouldn’t escorting them out of the lecture hall have been enough?