PORTLAND — Maine activists plan to join demonstrations happening across the country to call for legislation to prevent gun violence.

Portland area community leaders gather Saturday for a demonstration to call for congressional action to support measures like the new bipartisan proposal to require background checks for commercial gun sales.

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“We Have Not Forgotten and Demand Action” events were scheduled in more than a dozen states.

They are being held as Congress deliberates gun violence following the Dec. 14 massacre in Connecticut.