D.C. officials alerted businesses Thursday about possible “threats” from pro-life and anti-vaccine protesters who might flout the city’s new vaccination passport mandate this week. The Office of the Deputy Mayor for Planning and Economic Development emailed the alert to city business owners Thursday morning, citing the D.C. Homeland Security and Emergency Management Agency’s (HSEMA) Business Emergency Management Operations Center.

“Please be aware that there are many groups coming in from outside D.C. who may not be aware of or supportive of the District’s new vaccination requirements for certain establishments.” Organizers of Sunday’s “Defeat the Mandates” protest said unvaccinated protesters have no plans to break the law by demanding entry to local businesses. Robert F. Kennedy, Jr. will be the featured speaker at Sunday’s protest. He said any “violent provocations” will come from counterprotesters.