Members of an animal rights group rushed the stage at a Bernie Sanders rally in Oakland on Monday, causing Secret Service to jump in and protect the presidential candidate.
Sanders is campaigning in California ahead of the primary of June 7.
While speaking on Memorial day, at least four activists were detained by police when they attempted to get on the stage with the Vermont senator.
Secret Service hugged a flustered Sanders to get him out of the way of the activists who stormed the stage.
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Bernie Sanders (pictured) was giving a speech in Oakland, California, when protesters rushed the stage he was speaking on
An animal right's activist group took responsibility for rushing the stage, which saw at least four people detained