A rep for Dropkick Murphys has revealed the bloody altercation bassist Ken Casey had with a fan during Boston's House Of Blues show on Friday, March 15 began due to an intoxicated fan hitting and elbowing women in the crowd.

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TMZ originally reported the fight, in which Casey reportedly stopped the band's show and called for security to remove the unruly fan. The bassist and Dropkick Murphys founder can be seen in the video with blood on his face, yelling at someone in the audience before diving into the crowd.

"We've been doing this for a number of years, and having been here for 21 of those years, I can tell you this is not new," vocalist Al Barr tells the audience. "When we invite you guys to come to one of our shows, it's like were saying come to our house. And when someone disrespects us, you're disrespecting us in our house."

A second video obtained by Billboard shows Casey "standing over the front section trying to break up the fight and then getting hit in the head with a beer can thrown from the crowd. After a brief tussle, Casey helps security bring one suspected troublemaker over the barricade, before the stage crew pull Casey away and security escorts the young man out the venue while fans jeer and cheer."

A source close to the band tells Billboard, "Ken could see the guy wasn't going to stop and that security was having a hard time getting to him, so he decided to handle it himself. Ken is not afraid to stand up to anyone who is ruining the show for someone else and the band has been clear that they won't tolerate abusive behavior."

A rep for Casey tells Billboard that he is feeling fine and is ready to get back to performing.

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