What was the deal with the brawl that broke out between employees?

Last weekend, during the water main break, 16 employees were arrested during a fight/riot/brawl. Does anybody know more details? I am just confused.

Here is a news article about it:

http://www.freep.com/article/20140610/NEWS06/306100086/Cedar-Point-...n-arrested

http://pointbuzz.com/Forums/Thread/30806.aspx