Wednesday marks the 21 year anniversary of a shooting at a Planned Parenthood clinic in Brookline that left two dead and activists are citing that event and other attacks in a request to government leaders to classify violence at reproductive health clinics as domestic terrorism.

Megan Amundson, executive director of NARAL Pro-Choice Massachusetts, dropped off a letter making the request to Gov. Charlie Baker on Monday morning. Amundson wants local officials to apply pressure on the U.S. Department of Justice to label attacks at family planning centers as terrorism.  The action follows deadly shootings at a Planned Parenthood clinic in Colorado in November.

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"Because of the rise in acts of violence at reproductive health clinics in 2015 and Massachusetts' history of clinic violence, it is critical that the Governor of Massachusetts stands with providers, clinic workers, and patients by asking that the Department of Justice investigate clinic violence as domestic terrorism," the group said in a statement Monday.

John Salvi was convicted in the Dec. 30, 1994 shootings at Planned Parenthood clinics in Brookline, which killed Shannon Lowney and Lee Ann Nichols and wounded five others.