Last night, when news broke that three gunmen had stormed a service centre in the Californian city for San Bernardino, it was just the latest in a string of mass shootings in the US. With 14 people decased, 17 wounded and two suspects killed after a police confrontation, live updates on the story are still unfolding, as the rest of the world watches on in horror.

"The one thing we do know is that we have a pattern now of mass shootings in this country that has no parallel anywhere else in the world," said President Barack Obama. "For those that are concerned about terrorism - some may be aware of the fact that we have a no-fly list where people who can't get on planes, but those same people who we don't allow to fly could go into a store right now in the United States and buy a firearm and there's nothing that we can do to stop them. That's a law that needs to be changed."

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Once news broke of the shooting, it didn't take long for anti-gun lobbyists, public figures and celebrities to start expressing their horror on Twitter. Here, we've collected just a few of them:

14 celeb reactions to the San Bernardino shooting

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