About 150 Boston University students — some standing silently, clad in all-black and holding signs with phrases such as “racism kills,” and others shouting chants at attendees — gathered in 27-degree weather outside the Boston University Track and Tennis Center to protest conservative pundit Ben Shapiro’s talk Wednesday night.

Conservative pundit Ben Shapiro spoke at Boston University Wednesday evening after weeks of controversy on campus surrounding his impending visit. Individual protestors raised their voices inside the venue at various points throughout the event.

Activist groups held a demonstration at the JFK Federal Building and marched in a “solidarity caravan” to the Suffolk County House of Corrections building to protest the treatment of immigrants from Central and South America Saturday.